Home / 284,031.60-391,998.32-163,172.66

Finding the Fourth Proportional to 284,031.60, 391,998.32 and 163,172.66

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Solution

The fourth proportional to 284,031.60, 391,998.32 and 163,172.66 is: 225,198.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,031.60 : 391,998.32 = 163,172.66 : x
  2. Step 2: Convert to fraction form
    284,031.60/391,998.32 = 163,172.66/x
  3. Step 3: Cross multiply
    284,031.60x = 391,998.32 × 163,172.66
  4. Step 4: Simplify right side
    284,031.60x = 63,963,406,425.97
  5. Step 5: Solve for x
    x = 63,963,406,425.97/284,031.60
  6. Step 6: Final answer
    x = 225,198.21

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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.