Home / 322,943.16-445,785.56-242,603.72

Finding the Fourth Proportional to 322,943.16, 445,785.56 and 242,603.72

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Solution

The fourth proportional to 322,943.16, 445,785.56 and 242,603.72 is: 334,886.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,943.16 : 445,785.56 = 242,603.72 : x
  2. Step 2: Convert to fraction form
    322,943.16/445,785.56 = 242,603.72/x
  3. Step 3: Cross multiply
    322,943.16x = 445,785.56 × 242,603.72
  4. Step 4: Simplify right side
    322,943.16x = 108,149,235,178.28
  5. Step 5: Solve for x
    x = 108,149,235,178.28/322,943.16
  6. Step 6: Final answer
    x = 334,886.29

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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.