Home / 242,479.20-363,459.60-109,336.80

Finding the Fourth Proportional to 242,479.20, 363,459.60 and 109,336.80

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Solution

The fourth proportional to 242,479.20, 363,459.60 and 109,336.80 is: 163,888.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,479.20 : 363,459.60 = 109,336.80 : x
  2. Step 2: Convert to fraction form
    242,479.20/363,459.60 = 109,336.80/x
  3. Step 3: Cross multiply
    242,479.20x = 363,459.60 × 109,336.80
  4. Step 4: Simplify right side
    242,479.20x = 39,739,509,593.28
  5. Step 5: Solve for x
    x = 39,739,509,593.28/242,479.20
  6. Step 6: Final answer
    x = 163,888.32

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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.