Home / 247,254.47-370,889.27-85,146.78

Finding the Fourth Proportional to 247,254.47, 370,889.27 and 85,146.78

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Solution

The fourth proportional to 247,254.47, 370,889.27 and 85,146.78 is: 127,722.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,254.47 : 370,889.27 = 85,146.78 : x
  2. Step 2: Convert to fraction form
    247,254.47/370,889.27 = 85,146.78/x
  3. Step 3: Cross multiply
    247,254.47x = 370,889.27 × 85,146.78
  4. Step 4: Simplify right side
    247,254.47x = 31,580,027,130.27
  5. Step 5: Solve for x
    x = 31,580,027,130.27/247,254.47
  6. Step 6: Final answer
    x = 127,722.77

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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.