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Finding the Fourth Proportional to 158,507.92, 238,058.08 and 139,539.36

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Solution

The fourth proportional to 158,507.92, 238,058.08 and 139,539.36 is: 209,569.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,507.92 : 238,058.08 = 139,539.36 : x
  2. Step 2: Convert to fraction form
    158,507.92/238,058.08 = 139,539.36/x
  3. Step 3: Cross multiply
    158,507.92x = 238,058.08 × 139,539.36
  4. Step 4: Simplify right side
    158,507.92x = 33,218,472,126.03
  5. Step 5: Solve for x
    x = 33,218,472,126.03/158,507.92
  6. Step 6: Final answer
    x = 209,569.79

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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.