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Finding the Fourth Proportional to 453,368.64, 680,028.35 and 137,800.95

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Solution

The fourth proportional to 453,368.64, 680,028.35 and 137,800.95 is: 206,693.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,368.64 : 680,028.35 = 137,800.95 : x
  2. Step 2: Convert to fraction form
    453,368.64/680,028.35 = 137,800.95/x
  3. Step 3: Cross multiply
    453,368.64x = 680,028.35 × 137,800.95
  4. Step 4: Simplify right side
    453,368.64x = 93,708,549,417.82
  5. Step 5: Solve for x
    x = 93,708,549,417.82/453,368.64
  6. Step 6: Final answer
    x = 206,693.94

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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.