Home / 390,525.05-585,576.94-177,176.55

Finding the Fourth Proportional to 390,525.05, 585,576.94 and 177,176.55

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Solution

The fourth proportional to 390,525.05, 585,576.94 and 177,176.55 is: 265,669.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,525.05 : 585,576.94 = 177,176.55 : x
  2. Step 2: Convert to fraction form
    390,525.05/585,576.94 = 177,176.55/x
  3. Step 3: Cross multiply
    390,525.05x = 585,576.94 × 177,176.55
  4. Step 4: Simplify right side
    390,525.05x = 103,750,499,349.90
  5. Step 5: Solve for x
    x = 103,750,499,349.90/390,525.05
  6. Step 6: Final answer
    x = 265,669.25

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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.