Home / 331,506.64-497,334.24-121,139.20

Finding the Fourth Proportional to 331,506.64, 497,334.24 and 121,139.20

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Solution

The fourth proportional to 331,506.64, 497,334.24 and 121,139.20 is: 181,735.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,506.64 : 497,334.24 = 121,139.20 : x
  2. Step 2: Convert to fraction form
    331,506.64/497,334.24 = 121,139.20/x
  3. Step 3: Cross multiply
    331,506.64x = 497,334.24 × 121,139.20
  4. Step 4: Simplify right side
    331,506.64x = 60,246,671,966.21
  5. Step 5: Solve for x
    x = 60,246,671,966.21/331,506.64
  6. Step 6: Final answer
    x = 181,735.94

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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.