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Finding the Fourth Proportional to 249,796.92, 344,711.21 and 142,401.57

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Solution

The fourth proportional to 249,796.92, 344,711.21 and 142,401.57 is: 196,509.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,796.92 : 344,711.21 = 142,401.57 : x
  2. Step 2: Convert to fraction form
    249,796.92/344,711.21 = 142,401.57/x
  3. Step 3: Cross multiply
    249,796.92x = 344,711.21 × 142,401.57
  4. Step 4: Simplify right side
    249,796.92x = 49,087,417,500.60
  5. Step 5: Solve for x
    x = 49,087,417,500.60/249,796.92
  6. Step 6: Final answer
    x = 196,509.30

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1.5x scale

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.