Home / 261,396.20-392,483.10-202,298.60

Finding the Fourth Proportional to 261,396.20, 392,483.10 and 202,298.60

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Solution

The fourth proportional to 261,396.20, 392,483.10 and 202,298.60 is: 303,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,396.20 : 392,483.10 = 202,298.60 : x
  2. Step 2: Convert to fraction form
    261,396.20/392,483.10 = 202,298.60/x
  3. Step 3: Cross multiply
    261,396.20x = 392,483.10 × 202,298.60
  4. Step 4: Simplify right side
    261,396.20x = 79,398,781,653.66
  5. Step 5: Solve for x
    x = 79,398,781,653.66/261,396.20
  6. Step 6: Final answer
    x = 303,748.80

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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.