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Finding the Fourth Proportional to 249,859.84, 344,806.64 and 140,987.29

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Solution

The fourth proportional to 249,859.84, 344,806.64 and 140,987.29 is: 194,562.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,859.84 : 344,806.64 = 140,987.29 : x
  2. Step 2: Convert to fraction form
    249,859.84/344,806.64 = 140,987.29/x
  3. Step 3: Cross multiply
    249,859.84x = 344,806.64 × 140,987.29
  4. Step 4: Simplify right side
    249,859.84x = 48,613,352,180.65
  5. Step 5: Solve for x
    x = 48,613,352,180.65/249,859.84
  6. Step 6: Final answer
    x = 194,562.49

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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.