Home / 487,836.60-731,808.66-155,336.12

Finding the Fourth Proportional to 487,836.60, 731,808.66 and 155,336.12

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Solution

The fourth proportional to 487,836.60, 731,808.66 and 155,336.12 is: 233,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,836.60 : 731,808.66 = 155,336.12 : x
  2. Step 2: Convert to fraction form
    487,836.60/731,808.66 = 155,336.12/x
  3. Step 3: Cross multiply
    487,836.60x = 731,808.66 × 155,336.12
  4. Step 4: Simplify right side
    487,836.60x = 113,676,317,826.80
  5. Step 5: Solve for x
    x = 113,676,317,826.80/487,836.60
  6. Step 6: Final answer
    x = 233,021.30

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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.