Home / 247,445.52-370,837.80-128,868.24

Finding the Fourth Proportional to 247,445.52, 370,837.80 and 128,868.24

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Solution

The fourth proportional to 247,445.52, 370,837.80 and 128,868.24 is: 193,130.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,445.52 : 370,837.80 = 128,868.24 : x
  2. Step 2: Convert to fraction form
    247,445.52/370,837.80 = 128,868.24/x
  3. Step 3: Cross multiply
    247,445.52x = 370,837.80 × 128,868.24
  4. Step 4: Simplify right side
    247,445.52x = 47,789,214,611.47
  5. Step 5: Solve for x
    x = 47,789,214,611.47/247,445.52
  6. Step 6: Final answer
    x = 193,130.25

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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.