Home / 291,222.67-402,011.28-195,784.72

Finding the Fourth Proportional to 291,222.67, 402,011.28 and 195,784.72

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Solution

The fourth proportional to 291,222.67, 402,011.28 and 195,784.72 is: 270,266.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,222.67 : 402,011.28 = 195,784.72 : x
  2. Step 2: Convert to fraction form
    291,222.67/402,011.28 = 195,784.72/x
  3. Step 3: Cross multiply
    291,222.67x = 402,011.28 × 195,784.72
  4. Step 4: Simplify right side
    291,222.67x = 78,707,665,891.64
  5. Step 5: Solve for x
    x = 78,707,665,891.64/291,222.67
  6. Step 6: Final answer
    x = 270,266.27

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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.