Home / 331,848.20-497,966.70-121,507.40

Finding the Fourth Proportional to 331,848.20, 497,966.70 and 121,507.40

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Solution

The fourth proportional to 331,848.20, 497,966.70 and 121,507.40 is: 182,332.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,848.20 : 497,966.70 = 121,507.40 : x
  2. Step 2: Convert to fraction form
    331,848.20/497,966.70 = 121,507.40/x
  3. Step 3: Cross multiply
    331,848.20x = 497,966.70 × 121,507.40
  4. Step 4: Simplify right side
    331,848.20x = 60,506,639,003.58
  5. Step 5: Solve for x
    x = 60,506,639,003.58/331,848.20
  6. Step 6: Final answer
    x = 182,332.28

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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.