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Finding the Fourth Proportional to 421,167.52, 581,330.49 and 249,145.32

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Solution

The fourth proportional to 421,167.52, 581,330.49 and 249,145.32 is: 343,891.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,167.52 : 581,330.49 = 249,145.32 : x
  2. Step 2: Convert to fraction form
    421,167.52/581,330.49 = 249,145.32/x
  3. Step 3: Cross multiply
    421,167.52x = 581,330.49 × 249,145.32
  4. Step 4: Simplify right side
    421,167.52x = 144,835,771,034.68
  5. Step 5: Solve for x
    x = 144,835,771,034.68/421,167.52
  6. Step 6: Final answer
    x = 343,891.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.