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Finding the Fourth Proportional to 443,355.52, 611,821.76 and 252,364.80

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Solution

The fourth proportional to 443,355.52, 611,821.76 and 252,364.80 is: 348,258.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,355.52 : 611,821.76 = 252,364.80 : x
  2. Step 2: Convert to fraction form
    443,355.52/611,821.76 = 252,364.80/x
  3. Step 3: Cross multiply
    443,355.52x = 611,821.76 × 252,364.80
  4. Step 4: Simplify right side
    443,355.52x = 154,402,276,098.05
  5. Step 5: Solve for x
    x = 154,402,276,098.05/443,355.52
  6. Step 6: Final answer
    x = 348,258.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.