Home / 210,627.28-315,983.27-77,508.24

Finding the Fourth Proportional to 210,627.28, 315,983.27 and 77,508.24

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Solution

The fourth proportional to 210,627.28, 315,983.27 and 77,508.24 is: 116,277.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,627.28 : 315,983.27 = 77,508.24 : x
  2. Step 2: Convert to fraction form
    210,627.28/315,983.27 = 77,508.24/x
  3. Step 3: Cross multiply
    210,627.28x = 315,983.27 × 77,508.24
  4. Step 4: Simplify right side
    210,627.28x = 24,491,307,127.14
  5. Step 5: Solve for x
    x = 24,491,307,127.14/210,627.28
  6. Step 6: Final answer
    x = 116,277.94

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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.