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Finding the Fourth Proportional to 258,264.32, 387,174.58 and 89,762.76

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Solution

The fourth proportional to 258,264.32, 387,174.58 and 89,762.76 is: 134,567.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,264.32 : 387,174.58 = 89,762.76 : x
  2. Step 2: Convert to fraction form
    258,264.32/387,174.58 = 89,762.76/x
  3. Step 3: Cross multiply
    258,264.32x = 387,174.58 × 89,762.76
  4. Step 4: Simplify right side
    258,264.32x = 34,753,858,678.23
  5. Step 5: Solve for x
    x = 34,753,858,678.23/258,264.32
  6. Step 6: Final answer
    x = 134,567.02

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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.