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Finding the Fourth Proportional to 498,547.80, 747,821.70 and 166,123.80

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Solution

The fourth proportional to 498,547.80, 747,821.70 and 166,123.80 is: 249,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,547.80 : 747,821.70 = 166,123.80 : x
  2. Step 2: Convert to fraction form
    498,547.80/747,821.70 = 166,123.80/x
  3. Step 3: Cross multiply
    498,547.80x = 747,821.70 × 166,123.80
  4. Step 4: Simplify right side
    498,547.80x = 124,230,982,526.46
  5. Step 5: Solve for x
    x = 124,230,982,526.46/498,547.80
  6. Step 6: Final answer
    x = 249,185.70

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Similar ratio
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1.5x scale

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.