Home / 257,534.27-386,227.51-77,637.23

Finding the Fourth Proportional to 257,534.27, 386,227.51 and 77,637.23

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Solution

The fourth proportional to 257,534.27, 386,227.51 and 77,637.23 is: 116,433.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,534.27 : 386,227.51 = 77,637.23 : x
  2. Step 2: Convert to fraction form
    257,534.27/386,227.51 = 77,637.23/x
  3. Step 3: Cross multiply
    257,534.27x = 386,227.51 × 77,637.23
  4. Step 4: Simplify right side
    257,534.27x = 29,985,634,026.20
  5. Step 5: Solve for x
    x = 29,985,634,026.20/257,534.27
  6. Step 6: Final answer
    x = 116,433.57

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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.