Home / 245,215.63-338,386.77-143,250.53

Finding the Fourth Proportional to 245,215.63, 338,386.77 and 143,250.53

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Solution

The fourth proportional to 245,215.63, 338,386.77 and 143,250.53 is: 197,679.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,215.63 : 338,386.77 = 143,250.53 : x
  2. Step 2: Convert to fraction form
    245,215.63/338,386.77 = 143,250.53/x
  3. Step 3: Cross multiply
    245,215.63x = 338,386.77 × 143,250.53
  4. Step 4: Simplify right side
    245,215.63x = 48,474,084,993.46
  5. Step 5: Solve for x
    x = 48,474,084,993.46/245,215.63
  6. Step 6: Final answer
    x = 197,679.43

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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.