Home / 304,759.28-420,775.62-190,082.72

Finding the Fourth Proportional to 304,759.28, 420,775.62 and 190,082.72

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Solution

The fourth proportional to 304,759.28, 420,775.62 and 190,082.72 is: 262,443.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,759.28 : 420,775.62 = 190,082.72 : x
  2. Step 2: Convert to fraction form
    304,759.28/420,775.62 = 190,082.72/x
  3. Step 3: Cross multiply
    304,759.28x = 420,775.62 × 190,082.72
  4. Step 4: Simplify right side
    304,759.28x = 79,982,174,359.29
  5. Step 5: Solve for x
    x = 79,982,174,359.29/304,759.28
  6. Step 6: Final answer
    x = 262,443.77

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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.