Home / 229,977.85-317,368.95-129,375.85

Finding the Fourth Proportional to 229,977.85, 317,368.95 and 129,375.85

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Solution

The fourth proportional to 229,977.85, 317,368.95 and 129,375.85 is: 178,538.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,977.85 : 317,368.95 = 129,375.85 : x
  2. Step 2: Convert to fraction form
    229,977.85/317,368.95 = 129,375.85/x
  3. Step 3: Cross multiply
    229,977.85x = 317,368.95 × 129,375.85
  4. Step 4: Simplify right side
    229,977.85x = 41,059,877,669.86
  5. Step 5: Solve for x
    x = 41,059,877,669.86/229,977.85
  6. Step 6: Final answer
    x = 178,538.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.