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Finding the Fourth Proportional to 371,573.48, 512,772.38 and 218,617.42

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Solution

The fourth proportional to 371,573.48, 512,772.38 and 218,617.42 is: 301,692.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,573.48 : 512,772.38 = 218,617.42 : x
  2. Step 2: Convert to fraction form
    371,573.48/512,772.38 = 218,617.42/x
  3. Step 3: Cross multiply
    371,573.48x = 512,772.38 × 218,617.42
  4. Step 4: Simplify right side
    371,573.48x = 112,100,974,762.86
  5. Step 5: Solve for x
    x = 112,100,974,762.86/371,573.48
  6. Step 6: Final answer
    x = 301,692.61

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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.