Home / 251,853.36-375,937.40-221,960.76

Finding the Fourth Proportional to 251,853.36, 375,937.40 and 221,960.76

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Solution

The fourth proportional to 251,853.36, 375,937.40 and 221,960.76 is: 331,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,853.36 : 375,937.40 = 221,960.76 : x
  2. Step 2: Convert to fraction form
    251,853.36/375,937.40 = 221,960.76/x
  3. Step 3: Cross multiply
    251,853.36x = 375,937.40 × 221,960.76
  4. Step 4: Simplify right side
    251,853.36x = 83,443,351,016.42
  5. Step 5: Solve for x
    x = 83,443,351,016.42/251,853.36
  6. Step 6: Final answer
    x = 331,317.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.