Home / 257,621.40-386,252.10-152,386.20

Finding the Fourth Proportional to 257,621.40, 386,252.10 and 152,386.20

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Solution

The fourth proportional to 257,621.40, 386,252.10 and 152,386.20 is: 228,472.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,621.40 : 386,252.10 = 152,386.20 : x
  2. Step 2: Convert to fraction form
    257,621.40/386,252.10 = 152,386.20/x
  3. Step 3: Cross multiply
    257,621.40x = 386,252.10 × 152,386.20
  4. Step 4: Simplify right side
    257,621.40x = 58,859,489,761.02
  5. Step 5: Solve for x
    x = 58,859,489,761.02/257,621.40
  6. Step 6: Final answer
    x = 228,472.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.