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Finding the Fourth Proportional to 528,058.32, 792,268.92 and 154,136.40

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Solution

The fourth proportional to 528,058.32, 792,268.92 and 154,136.40 is: 231,257.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,058.32 : 792,268.92 = 154,136.40 : x
  2. Step 2: Convert to fraction form
    528,058.32/792,268.92 = 154,136.40/x
  3. Step 3: Cross multiply
    528,058.32x = 792,268.92 × 154,136.40
  4. Step 4: Simplify right side
    528,058.32x = 122,117,479,160.69
  5. Step 5: Solve for x
    x = 122,117,479,160.69/528,058.32
  6. Step 6: Final answer
    x = 231,257.56

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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.