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Finding the Fourth Proportional to 266,885.42, 400,328.82 and 98,332.71

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Solution

The fourth proportional to 266,885.42, 400,328.82 and 98,332.71 is: 147,499.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,885.42 : 400,328.82 = 98,332.71 : x
  2. Step 2: Convert to fraction form
    266,885.42/400,328.82 = 98,332.71/x
  3. Step 3: Cross multiply
    266,885.42x = 400,328.82 × 98,332.71
  4. Step 4: Simplify right side
    266,885.42x = 39,365,417,761.70
  5. Step 5: Solve for x
    x = 39,365,417,761.70/266,885.42
  6. Step 6: Final answer
    x = 147,499.32

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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.