Home / 499,045.30-748,782.39-162,189.20

Finding the Fourth Proportional to 499,045.30, 748,782.39 and 162,189.20

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Solution

The fourth proportional to 499,045.30, 748,782.39 and 162,189.20 is: 243,353.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,045.30 : 748,782.39 = 162,189.20 : x
  2. Step 2: Convert to fraction form
    499,045.30/748,782.39 = 162,189.20/x
  3. Step 3: Cross multiply
    499,045.30x = 748,782.39 × 162,189.20
  4. Step 4: Simplify right side
    499,045.30x = 121,444,416,808.19
  5. Step 5: Solve for x
    x = 121,444,416,808.19/499,045.30
  6. Step 6: Final answer
    x = 243,353.49

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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.