Home / 242,215.20-363,063.60-109,072.80

Finding the Fourth Proportional to 242,215.20, 363,063.60 and 109,072.80

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Solution

The fourth proportional to 242,215.20, 363,063.60 and 109,072.80 is: 163,492.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,215.20 : 363,063.60 = 109,072.80 : x
  2. Step 2: Convert to fraction form
    242,215.20/363,063.60 = 109,072.80/x
  3. Step 3: Cross multiply
    242,215.20x = 363,063.60 × 109,072.80
  4. Step 4: Simplify right side
    242,215.20x = 39,600,363,430.08
  5. Step 5: Solve for x
    x = 39,600,363,430.08/242,215.20
  6. Step 6: Final answer
    x = 163,492.48

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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.