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Finding the Fourth Proportional to 249,447.84, 344,221.56 and 142,028.88

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Solution

The fourth proportional to 249,447.84, 344,221.56 and 142,028.88 is: 195,990.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,447.84 : 344,221.56 = 142,028.88 : x
  2. Step 2: Convert to fraction form
    249,447.84/344,221.56 = 142,028.88/x
  3. Step 3: Cross multiply
    249,447.84x = 344,221.56 × 142,028.88
  4. Step 4: Simplify right side
    249,447.84x = 48,889,402,638.65
  5. Step 5: Solve for x
    x = 48,889,402,638.65/249,447.84
  6. Step 6: Final answer
    x = 195,990.48

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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.