Home / 429,961.38-645,201.28-149,675.46

Finding the Fourth Proportional to 429,961.38, 645,201.28 and 149,675.46

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Solution

The fourth proportional to 429,961.38, 645,201.28 and 149,675.46 is: 224,603.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,961.38 : 645,201.28 = 149,675.46 : x
  2. Step 2: Convert to fraction form
    429,961.38/645,201.28 = 149,675.46/x
  3. Step 3: Cross multiply
    429,961.38x = 645,201.28 × 149,675.46
  4. Step 4: Simplify right side
    429,961.38x = 96,570,798,376.59
  5. Step 5: Solve for x
    x = 96,570,798,376.59/429,961.38
  6. Step 6: Final answer
    x = 224,603.42

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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.