Home / 320,895.62-442,819.10-175,673.60

Finding the Fourth Proportional to 320,895.62, 442,819.10 and 175,673.60

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Solution

The fourth proportional to 320,895.62, 442,819.10 and 175,673.60 is: 242,420.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,895.62 : 442,819.10 = 175,673.60 : x
  2. Step 2: Convert to fraction form
    320,895.62/442,819.10 = 175,673.60/x
  3. Step 3: Cross multiply
    320,895.62x = 442,819.10 × 175,673.60
  4. Step 4: Simplify right side
    320,895.62x = 77,791,625,445.76
  5. Step 5: Solve for x
    x = 77,791,625,445.76/320,895.62
  6. Step 6: Final answer
    x = 242,420.34

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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.