Home / 274,061.10-378,206.40-153,207.30

Finding the Fourth Proportional to 274,061.10, 378,206.40 and 153,207.30

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Solution

The fourth proportional to 274,061.10, 378,206.40 and 153,207.30 is: 211,427.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,061.10 : 378,206.40 = 153,207.30 : x
  2. Step 2: Convert to fraction form
    274,061.10/378,206.40 = 153,207.30/x
  3. Step 3: Cross multiply
    274,061.10x = 378,206.40 × 153,207.30
  4. Step 4: Simplify right side
    274,061.10x = 57,943,981,386.72
  5. Step 5: Solve for x
    x = 57,943,981,386.72/274,061.10
  6. Step 6: Final answer
    x = 211,427.24

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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.