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Finding the Fourth Proportional to 203,854.90, 305,782.35 and 185,484.10

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Solution

The fourth proportional to 203,854.90, 305,782.35 and 185,484.10 is: 278,226.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,854.90 : 305,782.35 = 185,484.10 : x
  2. Step 2: Convert to fraction form
    203,854.90/305,782.35 = 185,484.10/x
  3. Step 3: Cross multiply
    203,854.90x = 305,782.35 × 185,484.10
  4. Step 4: Simplify right side
    203,854.90x = 56,717,763,985.64
  5. Step 5: Solve for x
    x = 56,717,763,985.64/203,854.90
  6. Step 6: Final answer
    x = 278,226.15

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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.