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Finding the Fourth Proportional to 373,499.84, 515,421.42 and 203,740.04

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Solution

The fourth proportional to 373,499.84, 515,421.42 and 203,740.04 is: 281,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,499.84 : 515,421.42 = 203,740.04 : x
  2. Step 2: Convert to fraction form
    373,499.84/515,421.42 = 203,740.04/x
  3. Step 3: Cross multiply
    373,499.84x = 515,421.42 × 203,740.04
  4. Step 4: Simplify right side
    373,499.84x = 105,011,980,727.66
  5. Step 5: Solve for x
    x = 105,011,980,727.66/373,499.84
  6. Step 6: Final answer
    x = 281,156.70

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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.