Home / 331,970.60-498,117.90-154,386.20

Finding the Fourth Proportional to 331,970.60, 498,117.90 and 154,386.20

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Solution

The fourth proportional to 331,970.60, 498,117.90 and 154,386.20 is: 231,654.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,970.60 : 498,117.90 = 154,386.20 : x
  2. Step 2: Convert to fraction form
    331,970.60/498,117.90 = 154,386.20/x
  3. Step 3: Cross multiply
    331,970.60x = 498,117.90 × 154,386.20
  4. Step 4: Simplify right side
    331,970.60x = 76,902,529,732.98
  5. Step 5: Solve for x
    x = 76,902,529,732.98/331,970.60
  6. Step 6: Final answer
    x = 231,654.64

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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.