Home / 315,719.82-435,694.89-172,482.26

Finding the Fourth Proportional to 315,719.82, 435,694.89 and 172,482.26

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Solution

The fourth proportional to 315,719.82, 435,694.89 and 172,482.26 is: 238,026.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,719.82 : 435,694.89 = 172,482.26 : x
  2. Step 2: Convert to fraction form
    315,719.82/435,694.89 = 172,482.26/x
  3. Step 3: Cross multiply
    315,719.82x = 435,694.89 × 172,482.26
  4. Step 4: Simplify right side
    315,719.82x = 75,149,637,119.18
  5. Step 5: Solve for x
    x = 75,149,637,119.18/315,719.82
  6. Step 6: Final answer
    x = 238,026.35

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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.