Home / 259,560.84-389,341.62-72,572.16

Finding the Fourth Proportional to 259,560.84, 389,341.62 and 72,572.16

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Solution

The fourth proportional to 259,560.84, 389,341.62 and 72,572.16 is: 108,858.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,560.84 : 389,341.62 = 72,572.16 : x
  2. Step 2: Convert to fraction form
    259,560.84/389,341.62 = 72,572.16/x
  3. Step 3: Cross multiply
    259,560.84x = 389,341.62 × 72,572.16
  4. Step 4: Simplify right side
    259,560.84x = 28,255,362,341.30
  5. Step 5: Solve for x
    x = 28,255,362,341.30/259,560.84
  6. Step 6: Final answer
    x = 108,858.34

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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.