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Finding the Fourth Proportional to 249,796.18, 344,710.18 and 142,400.80

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Solution

The fourth proportional to 249,796.18, 344,710.18 and 142,400.80 is: 196,508.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,796.18 : 344,710.18 = 142,400.80 : x
  2. Step 2: Convert to fraction form
    249,796.18/344,710.18 = 142,400.80/x
  3. Step 3: Cross multiply
    249,796.18x = 344,710.18 × 142,400.80
  4. Step 4: Simplify right side
    249,796.18x = 49,087,005,400.14
  5. Step 5: Solve for x
    x = 49,087,005,400.14/249,796.18
  6. Step 6: Final answer
    x = 196,508.23

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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.