Home / 320,639.91-442,466.85-175,442.55

Finding the Fourth Proportional to 320,639.91, 442,466.85 and 175,442.55

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Solution

The fourth proportional to 320,639.91, 442,466.85 and 175,442.55 is: 242,101.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,639.91 : 442,466.85 = 175,442.55 : x
  2. Step 2: Convert to fraction form
    320,639.91/442,466.85 = 175,442.55/x
  3. Step 3: Cross multiply
    320,639.91x = 442,466.85 × 175,442.55
  4. Step 4: Simplify right side
    320,639.91x = 77,627,512,454.47
  5. Step 5: Solve for x
    x = 77,627,512,454.47/320,639.91
  6. Step 6: Final answer
    x = 242,101.84

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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.