Home / 217,948.83-300,903.57-172,809.15

Finding the Fourth Proportional to 217,948.83, 300,903.57 and 172,809.15

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Solution

The fourth proportional to 217,948.83, 300,903.57 and 172,809.15 is: 238,583.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,948.83 : 300,903.57 = 172,809.15 : x
  2. Step 2: Convert to fraction form
    217,948.83/300,903.57 = 172,809.15/x
  3. Step 3: Cross multiply
    217,948.83x = 300,903.57 × 172,809.15
  4. Step 4: Simplify right side
    217,948.83x = 51,998,890,163.67
  5. Step 5: Solve for x
    x = 51,998,890,163.67/217,948.83
  6. Step 6: Final answer
    x = 238,583.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.