Home / 453,848.16-680,772.30-138,305.28

Finding the Fourth Proportional to 453,848.16, 680,772.30 and 138,305.28

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Solution

The fourth proportional to 453,848.16, 680,772.30 and 138,305.28 is: 207,457.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,848.16 : 680,772.30 = 138,305.28 : x
  2. Step 2: Convert to fraction form
    453,848.16/680,772.30 = 138,305.28/x
  3. Step 3: Cross multiply
    453,848.16x = 680,772.30 × 138,305.28
  4. Step 4: Simplify right side
    453,848.16x = 94,154,403,567.74
  5. Step 5: Solve for x
    x = 94,154,403,567.74/453,848.16
  6. Step 6: Final answer
    x = 207,457.94

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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.