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Finding the Fourth Proportional to 438,900.01, 658,218.79 and 228,423.13

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Solution

The fourth proportional to 438,900.01, 658,218.79 and 228,423.13 is: 342,566.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,900.01 : 658,218.79 = 228,423.13 : x
  2. Step 2: Convert to fraction form
    438,900.01/658,218.79 = 228,423.13/x
  3. Step 3: Cross multiply
    438,900.01x = 658,218.79 × 228,423.13
  4. Step 4: Simplify right side
    438,900.01x = 150,352,396,236.61
  5. Step 5: Solve for x
    x = 150,352,396,236.61/438,900.01
  6. Step 6: Final answer
    x = 342,566.40

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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.