Home / 389,357.18-537,311.90-217,273.32

Finding the Fourth Proportional to 389,357.18, 537,311.90 and 217,273.32

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Solution

The fourth proportional to 389,357.18, 537,311.90 and 217,273.32 is: 299,836.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,357.18 : 537,311.90 = 217,273.32 : x
  2. Step 2: Convert to fraction form
    389,357.18/537,311.90 = 217,273.32/x
  3. Step 3: Cross multiply
    389,357.18x = 537,311.90 × 217,273.32
  4. Step 4: Simplify right side
    389,357.18x = 116,743,539,034.45
  5. Step 5: Solve for x
    x = 116,743,539,034.45/389,357.18
  6. Step 6: Final answer
    x = 299,836.62

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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.