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Finding the Fourth Proportional to 340,038.36, 469,391.22 and 219,186.36

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Solution

The fourth proportional to 340,038.36, 469,391.22 and 219,186.36 is: 302,566.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,038.36 : 469,391.22 = 219,186.36 : x
  2. Step 2: Convert to fraction form
    340,038.36/469,391.22 = 219,186.36/x
  3. Step 3: Cross multiply
    340,038.36x = 469,391.22 × 219,186.36
  4. Step 4: Simplify right side
    340,038.36x = 102,884,152,927.76
  5. Step 5: Solve for x
    x = 102,884,152,927.76/340,038.36
  6. Step 6: Final answer
    x = 302,566.31

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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.