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Finding the Fourth Proportional to 486,248.16, 729,444.96 and 170,649.60

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Solution

The fourth proportional to 486,248.16, 729,444.96 and 170,649.60 is: 255,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,248.16 : 729,444.96 = 170,649.60 : x
  2. Step 2: Convert to fraction form
    486,248.16/729,444.96 = 170,649.60/x
  3. Step 3: Cross multiply
    486,248.16x = 729,444.96 × 170,649.60
  4. Step 4: Simplify right side
    486,248.16x = 124,479,490,646.02
  5. Step 5: Solve for x
    x = 124,479,490,646.02/486,248.16
  6. Step 6: Final answer
    x = 255,999.92

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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.