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Finding the Fourth Proportional to 304,445.20, 420,303.28 and 183,616.96

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Solution

The fourth proportional to 304,445.20, 420,303.28 and 183,616.96 is: 253,493.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,445.20 : 420,303.28 = 183,616.96 : x
  2. Step 2: Convert to fraction form
    304,445.20/420,303.28 = 183,616.96/x
  3. Step 3: Cross multiply
    304,445.20x = 420,303.28 × 183,616.96
  4. Step 4: Simplify right side
    304,445.20x = 77,174,810,551.63
  5. Step 5: Solve for x
    x = 77,174,810,551.63/304,445.20
  6. Step 6: Final answer
    x = 253,493.27

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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.