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Finding the Fourth Proportional to 304,485,424.01, 420,190,290.60 and 165,256,185.77

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Solution

The fourth proportional to 304,485,424.01, 420,190,290.60 and 165,256,185.77 is: 228,053,756.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,485,424.01 : 420,190,290.60 = 165,256,185.77 : x
  2. Step 2: Convert to fraction form
    304,485,424.01/420,190,290.60 = 165,256,185.77/x
  3. Step 3: Cross multiply
    304,485,424.01x = 420,190,290.60 × 165,256,185.77
  4. Step 4: Simplify right side
    304,485,424.01x = 69,439,044,724,290,808
  5. Step 5: Solve for x
    x = 69,439,044,724,290,808/304,485,424.01
  6. Step 6: Final answer
    x = 228,053,756.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.