Home / 319,231.30-478,808.55-132,223.30

Finding the Fourth Proportional to 319,231.30, 478,808.55 and 132,223.30

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Solution

The fourth proportional to 319,231.30, 478,808.55 and 132,223.30 is: 198,319.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,231.30 : 478,808.55 = 132,223.30 : x
  2. Step 2: Convert to fraction form
    319,231.30/478,808.55 = 132,223.30/x
  3. Step 3: Cross multiply
    319,231.30x = 478,808.55 × 132,223.30
  4. Step 4: Simplify right side
    319,231.30x = 63,309,646,549.22
  5. Step 5: Solve for x
    x = 63,309,646,549.22/319,231.30
  6. Step 6: Final answer
    x = 198,319.04

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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.