Home / 331,948.20-498,116.70-121,607.40

Finding the Fourth Proportional to 331,948.20, 498,116.70 and 121,607.40

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Solution

The fourth proportional to 331,948.20, 498,116.70 and 121,607.40 is: 182,482.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,948.20 : 498,116.70 = 121,607.40 : x
  2. Step 2: Convert to fraction form
    331,948.20/498,116.70 = 121,607.40/x
  3. Step 3: Cross multiply
    331,948.20x = 498,116.70 × 121,607.40
  4. Step 4: Simplify right side
    331,948.20x = 60,574,676,783.58
  5. Step 5: Solve for x
    x = 60,574,676,783.58/331,948.20
  6. Step 6: Final answer
    x = 182,482.32

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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.