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Finding the Fourth Proportional to 249,364.80, 344,118.78 and 140,469.48

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Solution

The fourth proportional to 249,364.80, 344,118.78 and 140,469.48 is: 193,845.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,364.80 : 344,118.78 = 140,469.48 : x
  2. Step 2: Convert to fraction form
    249,364.80/344,118.78 = 140,469.48/x
  3. Step 3: Cross multiply
    249,364.80x = 344,118.78 × 140,469.48
  4. Step 4: Simplify right side
    249,364.80x = 48,338,186,084.83
  5. Step 5: Solve for x
    x = 48,338,186,084.83/249,364.80
  6. Step 6: Final answer
    x = 193,845.27

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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.