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Finding the Fourth Proportional to 239,776.80, 330,900.00 and 130,887.59

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Solution

The fourth proportional to 239,776.80, 330,900.00 and 130,887.59 is: 180,629.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,776.80 : 330,900.00 = 130,887.59 : x
  2. Step 2: Convert to fraction form
    239,776.80/330,900.00 = 130,887.59/x
  3. Step 3: Cross multiply
    239,776.80x = 330,900.00 × 130,887.59
  4. Step 4: Simplify right side
    239,776.80x = 43,310,704,581.86
  5. Step 5: Solve for x
    x = 43,310,704,581.86/239,776.80
  6. Step 6: Final answer
    x = 180,629.25

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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.