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Finding the Fourth Proportional to 373,587, 515,550.06 and 203,824.80

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Solution

The fourth proportional to 373,587, 515,550.06 and 203,824.80 is: 281,278.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,587 : 515,550.06 = 203,824.80 : x
  2. Step 2: Convert to fraction form
    373,587/515,550.06 = 203,824.80/x
  3. Step 3: Cross multiply
    373,587x = 515,550.06 × 203,824.80
  4. Step 4: Simplify right side
    373,587x = 105,081,887,869.49
  5. Step 5: Solve for x
    x = 105,081,887,869.49/373,587
  6. Step 6: Final answer
    x = 281,278.22

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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.