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Finding the Fourth Proportional to 205,334.40, 308,001.60 and 72,213.60

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Solution

The fourth proportional to 205,334.40, 308,001.60 and 72,213.60 is: 108,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,334.40 : 308,001.60 = 72,213.60 : x
  2. Step 2: Convert to fraction form
    205,334.40/308,001.60 = 72,213.60/x
  3. Step 3: Cross multiply
    205,334.40x = 308,001.60 × 72,213.60
  4. Step 4: Simplify right side
    205,334.40x = 22,241,904,341.76
  5. Step 5: Solve for x
    x = 22,241,904,341.76/205,334.40
  6. Step 6: Final answer
    x = 108,320.40

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1.5x scale

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.