Home / 390,216.03-585,381.15-165,576.30

Finding the Fourth Proportional to 390,216.03, 585,381.15 and 165,576.30

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Solution

The fourth proportional to 390,216.03, 585,381.15 and 165,576.30 is: 248,388.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,216.03 : 585,381.15 = 165,576.30 : x
  2. Step 2: Convert to fraction form
    390,216.03/585,381.15 = 165,576.30/x
  3. Step 3: Cross multiply
    390,216.03x = 585,381.15 × 165,576.30
  4. Step 4: Simplify right side
    390,216.03x = 96,925,244,906.75
  5. Step 5: Solve for x
    x = 96,925,244,906.75/390,216.03
  6. Step 6: Final answer
    x = 248,388.68

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1.5x scale

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.