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Finding the Fourth Proportional to 453,698.39, 680,547.60 and 138,158.03

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Solution

The fourth proportional to 453,698.39, 680,547.60 and 138,158.03 is: 207,237.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,698.39 : 680,547.60 = 138,158.03 : x
  2. Step 2: Convert to fraction form
    453,698.39/680,547.60 = 138,158.03/x
  3. Step 3: Cross multiply
    453,698.39x = 680,547.60 × 138,158.03
  4. Step 4: Simplify right side
    453,698.39x = 94,023,112,334.49
  5. Step 5: Solve for x
    x = 94,023,112,334.49/453,698.39
  6. Step 6: Final answer
    x = 207,237.04

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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.