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Finding the Fourth Proportional to 280,354.33, 386,875.46 and 159,484.24

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Solution

The fourth proportional to 280,354.33, 386,875.46 and 159,484.24 is: 220,080.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,354.33 : 386,875.46 = 159,484.24 : x
  2. Step 2: Convert to fraction form
    280,354.33/386,875.46 = 159,484.24/x
  3. Step 3: Cross multiply
    280,354.33x = 386,875.46 × 159,484.24
  4. Step 4: Simplify right side
    280,354.33x = 61,700,535,980.95
  5. Step 5: Solve for x
    x = 61,700,535,980.95/280,354.33
  6. Step 6: Final answer
    x = 220,080.56

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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.