Home / 245,218.38-338,390.57-143,253.28

Finding the Fourth Proportional to 245,218.38, 338,390.57 and 143,253.28

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Solution

The fourth proportional to 245,218.38, 338,390.57 and 143,253.28 is: 197,683.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,218.38 : 338,390.57 = 143,253.28 : x
  2. Step 2: Convert to fraction form
    245,218.38/338,390.57 = 143,253.28/x
  3. Step 3: Cross multiply
    245,218.38x = 338,390.57 × 143,253.28
  4. Step 4: Simplify right side
    245,218.38x = 48,475,559,073.57
  5. Step 5: Solve for x
    x = 48,475,559,073.57/245,218.38
  6. Step 6: Final answer
    x = 197,683.22

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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.