Home / 429,175.13-643,877.51-148,692.38

Finding the Fourth Proportional to 429,175.13, 643,877.51 and 148,692.38

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Solution

The fourth proportional to 429,175.13, 643,877.51 and 148,692.38 is: 223,078.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,175.13 : 643,877.51 = 148,692.38 : x
  2. Step 2: Convert to fraction form
    429,175.13/643,877.51 = 148,692.38/x
  3. Step 3: Cross multiply
    429,175.13x = 643,877.51 × 148,692.38
  4. Step 4: Simplify right side
    429,175.13x = 95,739,675,427.52
  5. Step 5: Solve for x
    x = 95,739,675,427.52/429,175.13
  6. Step 6: Final answer
    x = 223,078.34

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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.