Home / 320,851.62-442,780.65-175,670.10

Finding the Fourth Proportional to 320,851.62, 442,780.65 and 175,670.10

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Solution

The fourth proportional to 320,851.62, 442,780.65 and 175,670.10 is: 242,427.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,851.62 : 442,780.65 = 175,670.10 : x
  2. Step 2: Convert to fraction form
    320,851.62/442,780.65 = 175,670.10/x
  3. Step 3: Cross multiply
    320,851.62x = 442,780.65 × 175,670.10
  4. Step 4: Simplify right side
    320,851.62x = 77,783,321,063.57
  5. Step 5: Solve for x
    x = 77,783,321,063.57/320,851.62
  6. Step 6: Final answer
    x = 242,427.70

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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.