Home / 230,721.60-345,823.20-118,358.40

Finding the Fourth Proportional to 230,721.60, 345,823.20 and 118,358.40

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Solution

The fourth proportional to 230,721.60, 345,823.20 and 118,358.40 is: 177,404.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,721.60 : 345,823.20 = 118,358.40 : x
  2. Step 2: Convert to fraction form
    230,721.60/345,823.20 = 118,358.40/x
  3. Step 3: Cross multiply
    230,721.60x = 345,823.20 × 118,358.40
  4. Step 4: Simplify right side
    230,721.60x = 40,931,080,634.88
  5. Step 5: Solve for x
    x = 40,931,080,634.88/230,721.60
  6. Step 6: Final answer
    x = 177,404.63

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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.