Home / 290,248.40-434,957.24-165,331.28

Finding the Fourth Proportional to 290,248.40, 434,957.24 and 165,331.28

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Solution

The fourth proportional to 290,248.40, 434,957.24 and 165,331.28 is: 247,760.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,248.40 : 434,957.24 = 165,331.28 : x
  2. Step 2: Convert to fraction form
    290,248.40/434,957.24 = 165,331.28/x
  3. Step 3: Cross multiply
    290,248.40x = 434,957.24 × 165,331.28
  4. Step 4: Simplify right side
    290,248.40x = 71,912,037,234.47
  5. Step 5: Solve for x
    x = 71,912,037,234.47/290,248.40
  6. Step 6: Final answer
    x = 247,760.32

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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.