Home / 429,042.48-643,531.32-176,254.08

Finding the Fourth Proportional to 429,042.48, 643,531.32 and 176,254.08

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Solution

The fourth proportional to 429,042.48, 643,531.32 and 176,254.08 is: 264,367.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,042.48 : 643,531.32 = 176,254.08 : x
  2. Step 2: Convert to fraction form
    429,042.48/643,531.32 = 176,254.08/x
  3. Step 3: Cross multiply
    429,042.48x = 643,531.32 × 176,254.08
  4. Step 4: Simplify right side
    429,042.48x = 113,425,020,757.79
  5. Step 5: Solve for x
    x = 113,425,020,757.79/429,042.48
  6. Step 6: Final answer
    x = 264,367.81

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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.