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Finding the Fourth Proportional to 249,474.59, 344,177.21 and 153,815.21

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Solution

The fourth proportional to 249,474.59, 344,177.21 and 153,815.21 is: 212,204.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,474.59 : 344,177.21 = 153,815.21 : x
  2. Step 2: Convert to fraction form
    249,474.59/344,177.21 = 153,815.21/x
  3. Step 3: Cross multiply
    249,474.59x = 344,177.21 × 153,815.21
  4. Step 4: Simplify right side
    249,474.59x = 52,939,689,064.29
  5. Step 5: Solve for x
    x = 52,939,689,064.29/249,474.59
  6. Step 6: Final answer
    x = 212,204.73

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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.