Home / 320,280.55-480,592.10-207,934.36

Finding the Fourth Proportional to 320,280.55, 480,592.10 and 207,934.36

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Solution

The fourth proportional to 320,280.55, 480,592.10 and 207,934.36 is: 312,012.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,280.55 : 480,592.10 = 207,934.36 : x
  2. Step 2: Convert to fraction form
    320,280.55/480,592.10 = 207,934.36/x
  3. Step 3: Cross multiply
    320,280.55x = 480,592.10 × 207,934.36
  4. Step 4: Simplify right side
    320,280.55x = 99,931,610,052.91
  5. Step 5: Solve for x
    x = 99,931,610,052.91/320,280.55
  6. Step 6: Final answer
    x = 312,012.74

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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.