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Finding the Fourth Proportional to 320,487.68, 480,528 and 170,635.52

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Solution

The fourth proportional to 320,487.68, 480,528 and 170,635.52 is: 255,844.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,487.68 : 480,528 = 170,635.52 : x
  2. Step 2: Convert to fraction form
    320,487.68/480,528 = 170,635.52/x
  3. Step 3: Cross multiply
    320,487.68x = 480,528 × 170,635.52
  4. Step 4: Simplify right side
    320,487.68x = 81,995,145,154.56
  5. Step 5: Solve for x
    x = 81,995,145,154.56/320,487.68
  6. Step 6: Final answer
    x = 255,844.92

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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.