Home / 320,929.16-442,885.74-177,691.72

Finding the Fourth Proportional to 320,929.16, 442,885.74 and 177,691.72

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Solution

The fourth proportional to 320,929.16, 442,885.74 and 177,691.72 is: 245,216.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,929.16 : 442,885.74 = 177,691.72 : x
  2. Step 2: Convert to fraction form
    320,929.16/442,885.74 = 177,691.72/x
  3. Step 3: Cross multiply
    320,929.16x = 442,885.74 × 177,691.72
  4. Step 4: Simplify right side
    320,929.16x = 78,697,128,904.07
  5. Step 5: Solve for x
    x = 78,697,128,904.07/320,929.16
  6. Step 6: Final answer
    x = 245,216.51

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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.