Home / 287,070.28-396,131.23-166,219.72

Finding the Fourth Proportional to 287,070.28, 396,131.23 and 166,219.72

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Solution

The fourth proportional to 287,070.28, 396,131.23 and 166,219.72 is: 229,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,070.28 : 396,131.23 = 166,219.72 : x
  2. Step 2: Convert to fraction form
    287,070.28/396,131.23 = 166,219.72/x
  3. Step 3: Cross multiply
    287,070.28x = 396,131.23 × 166,219.72
  4. Step 4: Simplify right side
    287,070.28x = 65,844,822,932.91
  5. Step 5: Solve for x
    x = 65,844,822,932.91/287,070.28
  6. Step 6: Final answer
    x = 229,368.30

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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.