Home / 291,348.24-437,022.52-80,988

Finding the Fourth Proportional to 291,348.24, 437,022.52 and 80,988

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Solution

The fourth proportional to 291,348.24, 437,022.52 and 80,988 is: 121,482.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,348.24 : 437,022.52 = 80,988 : x
  2. Step 2: Convert to fraction form
    291,348.24/437,022.52 = 80,988/x
  3. Step 3: Cross multiply
    291,348.24x = 437,022.52 × 80,988
  4. Step 4: Simplify right side
    291,348.24x = 35,393,579,849.76
  5. Step 5: Solve for x
    x = 35,393,579,849.76/291,348.24
  6. Step 6: Final answer
    x = 121,482.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.