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Finding the Fourth Proportional to 280,309.64, 420,527.82 and 93,328.52

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Solution

The fourth proportional to 280,309.64, 420,527.82 and 93,328.52 is: 140,013.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,309.64 : 420,527.82 = 93,328.52 : x
  2. Step 2: Convert to fraction form
    280,309.64/420,527.82 = 93,328.52/x
  3. Step 3: Cross multiply
    280,309.64x = 420,527.82 × 93,328.52
  4. Step 4: Simplify right side
    280,309.64x = 39,247,239,059.43
  5. Step 5: Solve for x
    x = 39,247,239,059.43/280,309.64
  6. Step 6: Final answer
    x = 140,013.88

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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.