Home / 304,120.18-455,862.88-135,719.29

Finding the Fourth Proportional to 304,120.18, 455,862.88 and 135,719.29

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Solution

The fourth proportional to 304,120.18, 455,862.88 and 135,719.29 is: 203,437.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,120.18 : 455,862.88 = 135,719.29 : x
  2. Step 2: Convert to fraction form
    304,120.18/455,862.88 = 135,719.29/x
  3. Step 3: Cross multiply
    304,120.18x = 455,862.88 × 135,719.29
  4. Step 4: Simplify right side
    304,120.18x = 61,869,383,792.34
  5. Step 5: Solve for x
    x = 61,869,383,792.34/304,120.18
  6. Step 6: Final answer
    x = 203,437.29

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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.