Home / 331,319.20-497,043.60-141,779.20

Finding the Fourth Proportional to 331,319.20, 497,043.60 and 141,779.20

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Solution

The fourth proportional to 331,319.20, 497,043.60 and 141,779.20 is: 212,696.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,319.20 : 497,043.60 = 141,779.20 : x
  2. Step 2: Convert to fraction form
    331,319.20/497,043.60 = 141,779.20/x
  3. Step 3: Cross multiply
    331,319.20x = 497,043.60 × 141,779.20
  4. Step 4: Simplify right side
    331,319.20x = 70,470,443,973.12
  5. Step 5: Solve for x
    x = 70,470,443,973.12/331,319.20
  6. Step 6: Final answer
    x = 212,696.53

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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.