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Finding the Fourth Proportional to 280,308.64, 420,526.32 and 93,327.52

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Solution

The fourth proportional to 280,308.64, 420,526.32 and 93,327.52 is: 140,012.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,308.64 : 420,526.32 = 93,327.52 : x
  2. Step 2: Convert to fraction form
    280,308.64/420,526.32 = 93,327.52/x
  3. Step 3: Cross multiply
    280,308.64x = 420,526.32 × 93,327.52
  4. Step 4: Simplify right side
    280,308.64x = 39,246,678,540.33
  5. Step 5: Solve for x
    x = 39,246,678,540.33/280,308.64
  6. Step 6: Final answer
    x = 140,012.38

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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.