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Finding the Fourth Proportional to 266,032.70, 399,243.45 and 187,300.70

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Solution

The fourth proportional to 266,032.70, 399,243.45 and 187,300.70 is: 281,087.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,032.70 : 399,243.45 = 187,300.70 : x
  2. Step 2: Convert to fraction form
    266,032.70/399,243.45 = 187,300.70/x
  3. Step 3: Cross multiply
    266,032.70x = 399,243.45 × 187,300.70
  4. Step 4: Simplify right side
    266,032.70x = 74,778,577,655.42
  5. Step 5: Solve for x
    x = 74,778,577,655.42/266,032.70
  6. Step 6: Final answer
    x = 281,087.92

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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.