Home / 248,140.20-342,511.38-140,781.60

Finding the Fourth Proportional to 248,140.20, 342,511.38 and 140,781.60

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Solution

The fourth proportional to 248,140.20, 342,511.38 and 140,781.60 is: 194,322.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,140.20 : 342,511.38 = 140,781.60 : x
  2. Step 2: Convert to fraction form
    248,140.20/342,511.38 = 140,781.60/x
  3. Step 3: Cross multiply
    248,140.20x = 342,511.38 × 140,781.60
  4. Step 4: Simplify right side
    248,140.20x = 48,219,300,094.61
  5. Step 5: Solve for x
    x = 48,219,300,094.61/248,140.20
  6. Step 6: Final answer
    x = 194,322.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.