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Finding the Fourth Proportional to 373,488.84, 515,410.08 and 203,719.32

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Solution

The fourth proportional to 373,488.84, 515,410.08 and 203,719.32 is: 281,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,488.84 : 515,410.08 = 203,719.32 : x
  2. Step 2: Convert to fraction form
    373,488.84/515,410.08 = 203,719.32/x
  3. Step 3: Cross multiply
    373,488.84x = 515,410.08 × 203,719.32
  4. Step 4: Simplify right side
    373,488.84x = 104,998,991,018.75
  5. Step 5: Solve for x
    x = 104,998,991,018.75/373,488.84
  6. Step 6: Final answer
    x = 281,130.20

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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.