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Finding the Fourth Proportional to 486,093.30, 729,139.95 and 153,669.30

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Solution

The fourth proportional to 486,093.30, 729,139.95 and 153,669.30 is: 230,503.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,093.30 : 729,139.95 = 153,669.30 : x
  2. Step 2: Convert to fraction form
    486,093.30/729,139.95 = 153,669.30/x
  3. Step 3: Cross multiply
    486,093.30x = 729,139.95 × 153,669.30
  4. Step 4: Simplify right side
    486,093.30x = 112,046,425,718.54
  5. Step 5: Solve for x
    x = 112,046,425,718.54/486,093.30
  6. Step 6: Final answer
    x = 230,503.95

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Similar ratio
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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.