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Finding the Fourth Proportional to 290,127.52, 434,335.92 and 282,973.60

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Solution

The fourth proportional to 290,127.52, 434,335.92 and 282,973.60 is: 423,626.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,127.52 : 434,335.92 = 282,973.60 : x
  2. Step 2: Convert to fraction form
    290,127.52/434,335.92 = 282,973.60/x
  3. Step 3: Cross multiply
    290,127.52x = 434,335.92 × 282,973.60
  4. Step 4: Simplify right side
    290,127.52x = 122,905,598,891.71
  5. Step 5: Solve for x
    x = 122,905,598,891.71/290,127.52
  6. Step 6: Final answer
    x = 423,626.13

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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.