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Finding the Fourth Proportional to 438,903.01, 658,223.29 and 228,426.13

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Solution

The fourth proportional to 438,903.01, 658,223.29 and 228,426.13 is: 342,570.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,903.01 : 658,223.29 = 228,426.13 : x
  2. Step 2: Convert to fraction form
    438,903.01/658,223.29 = 228,426.13/x
  3. Step 3: Cross multiply
    438,903.01x = 658,223.29 × 228,426.13
  4. Step 4: Simplify right side
    438,903.01x = 150,355,398,810.57
  5. Step 5: Solve for x
    x = 150,355,398,810.57/438,903.01
  6. Step 6: Final answer
    x = 342,570.90

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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.