Home / 429,133.91-643,813.03-249,046.22

Finding the Fourth Proportional to 429,133.91, 643,813.03 and 249,046.22

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Solution

The fourth proportional to 429,133.91, 643,813.03 and 249,046.22 is: 373,634.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,133.91 : 643,813.03 = 249,046.22 : x
  2. Step 2: Convert to fraction form
    429,133.91/643,813.03 = 249,046.22/x
  3. Step 3: Cross multiply
    429,133.91x = 643,813.03 × 249,046.22
  4. Step 4: Simplify right side
    429,133.91x = 160,339,197,666.57
  5. Step 5: Solve for x
    x = 160,339,197,666.57/429,133.91
  6. Step 6: Final answer
    x = 373,634.42

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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.