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Finding the Fourth Proportional to 443,396, 611,901.60 and 242,204.96

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Solution

The fourth proportional to 443,396, 611,901.60 and 242,204.96 is: 334,251.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,396 : 611,901.60 = 242,204.96 : x
  2. Step 2: Convert to fraction form
    443,396/611,901.60 = 242,204.96/x
  3. Step 3: Cross multiply
    443,396x = 611,901.60 × 242,204.96
  4. Step 4: Simplify right side
    443,396x = 148,205,602,551.94
  5. Step 5: Solve for x
    x = 148,205,602,551.94/443,396
  6. Step 6: Final answer
    x = 334,251.10

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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.