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Finding the Fourth Proportional to 259,560.32, 389,153.48 and 159,513.72

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Solution

The fourth proportional to 259,560.32, 389,153.48 and 159,513.72 is: 239,155.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,560.32 : 389,153.48 = 159,513.72 : x
  2. Step 2: Convert to fraction form
    259,560.32/389,153.48 = 159,513.72/x
  3. Step 3: Cross multiply
    259,560.32x = 389,153.48 × 159,513.72
  4. Step 4: Simplify right side
    259,560.32x = 62,075,319,245.75
  5. Step 5: Solve for x
    x = 62,075,319,245.75/259,560.32
  6. Step 6: Final answer
    x = 239,155.66

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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.