Home / 318,622.08-477,665.28-213,119.04

Finding the Fourth Proportional to 318,622.08, 477,665.28 and 213,119.04

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Solution

The fourth proportional to 318,622.08, 477,665.28 and 213,119.04 is: 319,499.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,622.08 : 477,665.28 = 213,119.04 : x
  2. Step 2: Convert to fraction form
    318,622.08/477,665.28 = 213,119.04/x
  3. Step 3: Cross multiply
    318,622.08x = 477,665.28 × 213,119.04
  4. Step 4: Simplify right side
    318,622.08x = 101,799,565,914.93
  5. Step 5: Solve for x
    x = 101,799,565,914.93/318,622.08
  6. Step 6: Final answer
    x = 319,499.41

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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.