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Finding the Fourth Proportional to 266,064.90, 399,097.35 and 166,337.70

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Solution

The fourth proportional to 266,064.90, 399,097.35 and 166,337.70 is: 249,506.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,064.90 : 399,097.35 = 166,337.70 : x
  2. Step 2: Convert to fraction form
    266,064.90/399,097.35 = 166,337.70/x
  3. Step 3: Cross multiply
    266,064.90x = 399,097.35 × 166,337.70
  4. Step 4: Simplify right side
    266,064.90x = 66,384,935,275.10
  5. Step 5: Solve for x
    x = 66,384,935,275.10/266,064.90
  6. Step 6: Final answer
    x = 249,506.55

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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.