Home / 274,545.25-378,880.36-153,685.82

Finding the Fourth Proportional to 274,545.25, 378,880.36 and 153,685.82

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Solution

The fourth proportional to 274,545.25, 378,880.36 and 153,685.82 is: 212,090.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,545.25 : 378,880.36 = 153,685.82 : x
  2. Step 2: Convert to fraction form
    274,545.25/378,880.36 = 153,685.82/x
  3. Step 3: Cross multiply
    274,545.25x = 378,880.36 × 153,685.82
  4. Step 4: Simplify right side
    274,545.25x = 58,228,539,371.48
  5. Step 5: Solve for x
    x = 58,228,539,371.48/274,545.25
  6. Step 6: Final answer
    x = 212,090.87

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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.