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Finding the Fourth Proportional to 665,480.95, 998,389.38 and 185,708.35

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Solution

The fourth proportional to 665,480.95, 998,389.38 and 185,708.35 is: 278,609.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,480.95 : 998,389.38 = 185,708.35 : x
  2. Step 2: Convert to fraction form
    665,480.95/998,389.38 = 185,708.35/x
  3. Step 3: Cross multiply
    665,480.95x = 998,389.38 × 185,708.35
  4. Step 4: Simplify right side
    665,480.95x = 185,409,244,417.32
  5. Step 5: Solve for x
    x = 185,409,244,417.32/665,480.95
  6. Step 6: Final answer
    x = 278,609.39

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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.