Home / 331,815.40-497,723.10-154,263.40

Finding the Fourth Proportional to 331,815.40, 497,723.10 and 154,263.40

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Solution

The fourth proportional to 331,815.40, 497,723.10 and 154,263.40 is: 231,395.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,815.40 : 497,723.10 = 154,263.40 : x
  2. Step 2: Convert to fraction form
    331,815.40/497,723.10 = 154,263.40/x
  3. Step 3: Cross multiply
    331,815.40x = 497,723.10 × 154,263.40
  4. Step 4: Simplify right side
    331,815.40x = 76,780,457,664.54
  5. Step 5: Solve for x
    x = 76,780,457,664.54/331,815.40
  6. Step 6: Final answer
    x = 231,395.10

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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.