Home / 487,664.55-731,624.40-188,154.90

Finding the Fourth Proportional to 487,664.55, 731,624.40 and 188,154.90

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Solution

The fourth proportional to 487,664.55, 731,624.40 and 188,154.90 is: 282,281.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,664.55 : 731,624.40 = 188,154.90 : x
  2. Step 2: Convert to fraction form
    487,664.55/731,624.40 = 188,154.90/x
  3. Step 3: Cross multiply
    487,664.55x = 731,624.40 × 188,154.90
  4. Step 4: Simplify right side
    487,664.55x = 137,658,715,819.56
  5. Step 5: Solve for x
    x = 137,658,715,819.56/487,664.55
  6. Step 6: Final answer
    x = 282,281.57

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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.