Home / 320,770.63-442,617.13-177,530.33

Finding the Fourth Proportional to 320,770.63, 442,617.13 and 177,530.33

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Solution

The fourth proportional to 320,770.63, 442,617.13 and 177,530.33 is: 244,966.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,770.63 : 442,617.13 = 177,530.33 : x
  2. Step 2: Convert to fraction form
    320,770.63/442,617.13 = 177,530.33/x
  3. Step 3: Cross multiply
    320,770.63x = 442,617.13 × 177,530.33
  4. Step 4: Simplify right side
    320,770.63x = 78,577,966,980.31
  5. Step 5: Solve for x
    x = 78,577,966,980.31/320,770.63
  6. Step 6: Final answer
    x = 244,966.21

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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.