Home / 429,135.91-643,816.03-249,048.22

Finding the Fourth Proportional to 429,135.91, 643,816.03 and 249,048.22

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Solution

The fourth proportional to 429,135.91, 643,816.03 and 249,048.22 is: 373,637.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,135.91 : 643,816.03 = 249,048.22 : x
  2. Step 2: Convert to fraction form
    429,135.91/643,816.03 = 249,048.22/x
  3. Step 3: Cross multiply
    429,135.91x = 643,816.03 × 249,048.22
  4. Step 4: Simplify right side
    429,135.91x = 160,341,236,278.97
  5. Step 5: Solve for x
    x = 160,341,236,278.97/429,135.91
  6. Step 6: Final answer
    x = 373,637.42

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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.