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Finding the Fourth Proportional to 231,995.77, 320,180.73 and 130,048.77

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Solution

The fourth proportional to 231,995.77, 320,180.73 and 130,048.77 is: 179,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,995.77 : 320,180.73 = 130,048.77 : x
  2. Step 2: Convert to fraction form
    231,995.77/320,180.73 = 130,048.77/x
  3. Step 3: Cross multiply
    231,995.77x = 320,180.73 × 130,048.77
  4. Step 4: Simplify right side
    231,995.77x = 41,639,110,114.20
  5. Step 5: Solve for x
    x = 41,639,110,114.20/231,995.77
  6. Step 6: Final answer
    x = 179,482.20

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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.