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Finding the Fourth Proportional to 360,211.02, 539,833.52 and 280,345.42

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Solution

The fourth proportional to 360,211.02, 539,833.52 and 280,345.42 is: 420,142.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,211.02 : 539,833.52 = 280,345.42 : x
  2. Step 2: Convert to fraction form
    360,211.02/539,833.52 = 280,345.42/x
  3. Step 3: Cross multiply
    360,211.02x = 539,833.52 × 280,345.42
  4. Step 4: Simplify right side
    360,211.02x = 151,339,854,894.48
  5. Step 5: Solve for x
    x = 151,339,854,894.48/360,211.02
  6. Step 6: Final answer
    x = 420,142.21

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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.