Home / 390,557.34-585,625.23-177,208.83

Finding the Fourth Proportional to 390,557.34, 585,625.23 and 177,208.83

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Solution

The fourth proportional to 390,557.34, 585,625.23 and 177,208.83 is: 265,717.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,557.34 : 585,625.23 = 177,208.83 : x
  2. Step 2: Convert to fraction form
    390,557.34/585,625.23 = 177,208.83/x
  3. Step 3: Cross multiply
    390,557.34x = 585,625.23 × 177,208.83
  4. Step 4: Simplify right side
    390,557.34x = 103,777,961,826.78
  5. Step 5: Solve for x
    x = 103,777,961,826.78/390,557.34
  6. Step 6: Final answer
    x = 265,717.61

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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.