Home / 319,023.12-478,578.42-141,526.20

Finding the Fourth Proportional to 319,023.12, 478,578.42 and 141,526.20

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Solution

The fourth proportional to 319,023.12, 478,578.42 and 141,526.20 is: 212,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,023.12 : 478,578.42 = 141,526.20 : x
  2. Step 2: Convert to fraction form
    319,023.12/478,578.42 = 141,526.20/x
  3. Step 3: Cross multiply
    319,023.12x = 478,578.42 × 141,526.20
  4. Step 4: Simplify right side
    319,023.12x = 67,731,385,184.60
  5. Step 5: Solve for x
    x = 67,731,385,184.60/319,023.12
  6. Step 6: Final answer
    x = 212,308.70

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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.