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Finding the Fourth Proportional to 280,925.92, 387,675.12 and 153,600.16

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Solution

The fourth proportional to 280,925.92, 387,675.12 and 153,600.16 is: 211,966.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,925.92 : 387,675.12 = 153,600.16 : x
  2. Step 2: Convert to fraction form
    280,925.92/387,675.12 = 153,600.16/x
  3. Step 3: Cross multiply
    280,925.92x = 387,675.12 × 153,600.16
  4. Step 4: Simplify right side
    280,925.92x = 59,546,960,460.02
  5. Step 5: Solve for x
    x = 59,546,960,460.02/280,925.92
  6. Step 6: Final answer
    x = 211,966.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.