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Finding the Fourth Proportional to 438,800.20, 658,200.30 and 367,941.40

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Solution

The fourth proportional to 438,800.20, 658,200.30 and 367,941.40 is: 551,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,800.20 : 658,200.30 = 367,941.40 : x
  2. Step 2: Convert to fraction form
    438,800.20/658,200.30 = 367,941.40/x
  3. Step 3: Cross multiply
    438,800.20x = 658,200.30 × 367,941.40
  4. Step 4: Simplify right side
    438,800.20x = 242,179,139,862.42
  5. Step 5: Solve for x
    x = 242,179,139,862.42/438,800.20
  6. Step 6: Final answer
    x = 551,912.10

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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.