Home / 284,063.90-391,995.05-163,120.10

Finding the Fourth Proportional to 284,063.90, 391,995.05 and 163,120.10

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Solution

The fourth proportional to 284,063.90, 391,995.05 and 163,120.10 is: 225,098.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,063.90 : 391,995.05 = 163,120.10 : x
  2. Step 2: Convert to fraction form
    284,063.90/391,995.05 = 163,120.10/x
  3. Step 3: Cross multiply
    284,063.90x = 391,995.05 × 163,120.10
  4. Step 4: Simplify right side
    284,063.90x = 63,942,268,979.93
  5. Step 5: Solve for x
    x = 63,942,268,979.93/284,063.90
  6. Step 6: Final answer
    x = 225,098.19

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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.