Home / 245,274.21-338,570.91-143,332.88

Finding the Fourth Proportional to 245,274.21, 338,570.91 and 143,332.88

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Solution

The fourth proportional to 245,274.21, 338,570.91 and 143,332.88 is: 197,853.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,274.21 : 338,570.91 = 143,332.88 : x
  2. Step 2: Convert to fraction form
    245,274.21/338,570.91 = 143,332.88/x
  3. Step 3: Cross multiply
    245,274.21x = 338,570.91 × 143,332.88
  4. Step 4: Simplify right side
    245,274.21x = 48,528,341,921.67
  5. Step 5: Solve for x
    x = 48,528,341,921.67/245,274.21
  6. Step 6: Final answer
    x = 197,853.42

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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.