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Finding the Fourth Proportional to 280,773.44, 387,492.32 and 159,888.32

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Solution

The fourth proportional to 280,773.44, 387,492.32 and 159,888.32 is: 220,660.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,773.44 : 387,492.32 = 159,888.32 : x
  2. Step 2: Convert to fraction form
    280,773.44/387,492.32 = 159,888.32/x
  3. Step 3: Cross multiply
    280,773.44x = 387,492.32 × 159,888.32
  4. Step 4: Simplify right side
    280,773.44x = 61,955,496,057.70
  5. Step 5: Solve for x
    x = 61,955,496,057.70/280,773.44
  6. Step 6: Final answer
    x = 220,660.10

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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.