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Finding the Fourth Proportional to 328,378.35, 453,162.66 and 185,138.01

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Solution

The fourth proportional to 328,378.35, 453,162.66 and 185,138.01 is: 255,490.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,378.35 : 453,162.66 = 185,138.01 : x
  2. Step 2: Convert to fraction form
    328,378.35/453,162.66 = 185,138.01/x
  3. Step 3: Cross multiply
    328,378.35x = 453,162.66 × 185,138.01
  4. Step 4: Simplify right side
    328,378.35x = 83,897,633,078.71
  5. Step 5: Solve for x
    x = 83,897,633,078.71/328,378.35
  6. Step 6: Final answer
    x = 255,490.76

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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.