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Finding the Fourth Proportional to 328,560.72, 453,403.62 and 185,318.70

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Solution

The fourth proportional to 328,560.72, 453,403.62 and 185,318.70 is: 255,734.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,560.72 : 453,403.62 = 185,318.70 : x
  2. Step 2: Convert to fraction form
    328,560.72/453,403.62 = 185,318.70/x
  3. Step 3: Cross multiply
    328,560.72x = 453,403.62 × 185,318.70
  4. Step 4: Simplify right side
    328,560.72x = 84,024,169,433.69
  5. Step 5: Solve for x
    x = 84,024,169,433.69/328,560.72
  6. Step 6: Final answer
    x = 255,734.07

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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.