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Finding the Fourth Proportional to 516,853.49, 775,280.28 and 161,895.20

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Solution

The fourth proportional to 516,853.49, 775,280.28 and 161,895.20 is: 242,842.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,853.49 : 775,280.28 = 161,895.20 : x
  2. Step 2: Convert to fraction form
    516,853.49/775,280.28 = 161,895.20/x
  3. Step 3: Cross multiply
    516,853.49x = 775,280.28 × 161,895.20
  4. Step 4: Simplify right side
    516,853.49x = 125,514,152,110.26
  5. Step 5: Solve for x
    x = 125,514,152,110.26/516,853.49
  6. Step 6: Final answer
    x = 242,842.81

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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.