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Finding the Fourth Proportional to 249,053.62, 343,679.98 and 141,649.78

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Solution

The fourth proportional to 249,053.62, 343,679.98 and 141,649.78 is: 195,468.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,053.62 : 343,679.98 = 141,649.78 : x
  2. Step 2: Convert to fraction form
    249,053.62/343,679.98 = 141,649.78/x
  3. Step 3: Cross multiply
    249,053.62x = 343,679.98 × 141,649.78
  4. Step 4: Simplify right side
    249,053.62x = 48,682,193,557.40
  5. Step 5: Solve for x
    x = 48,682,193,557.40/249,053.62
  6. Step 6: Final answer
    x = 195,468.72

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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.