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Finding the Fourth Proportional to 258,193.92, 387,280.35 and 89,752.44

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Solution

The fourth proportional to 258,193.92, 387,280.35 and 89,752.44 is: 134,625.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,193.92 : 387,280.35 = 89,752.44 : x
  2. Step 2: Convert to fraction form
    258,193.92/387,280.35 = 89,752.44/x
  3. Step 3: Cross multiply
    258,193.92x = 387,280.35 × 89,752.44
  4. Step 4: Simplify right side
    258,193.92x = 34,759,356,376.55
  5. Step 5: Solve for x
    x = 34,759,356,376.55/258,193.92
  6. Step 6: Final answer
    x = 134,625.00

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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.