Home / 331,618.20-497,621.70-121,277.40

Finding the Fourth Proportional to 331,618.20, 497,621.70 and 121,277.40

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Solution

The fourth proportional to 331,618.20, 497,621.70 and 121,277.40 is: 181,987.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,618.20 : 497,621.70 = 121,277.40 : x
  2. Step 2: Convert to fraction form
    331,618.20/497,621.70 = 121,277.40/x
  3. Step 3: Cross multiply
    331,618.20x = 497,621.70 × 121,277.40
  4. Step 4: Simplify right side
    331,618.20x = 60,350,265,959.58
  5. Step 5: Solve for x
    x = 60,350,265,959.58/331,618.20
  6. Step 6: Final answer
    x = 181,987.19

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1.5x scale

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.