Home / 438,430.10-657,645.15-106,006.10

Finding the Fourth Proportional to 438,430.10, 657,645.15 and 106,006.10

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Solution

The fourth proportional to 438,430.10, 657,645.15 and 106,006.10 is: 159,009.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,430.10 : 657,645.15 = 106,006.10 : x
  2. Step 2: Convert to fraction form
    438,430.10/657,645.15 = 106,006.10/x
  3. Step 3: Cross multiply
    438,430.10x = 657,645.15 × 106,006.10
  4. Step 4: Simplify right side
    438,430.10x = 69,714,397,535.42
  5. Step 5: Solve for x
    x = 69,714,397,535.42/438,430.10
  6. Step 6: Final answer
    x = 159,009.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.