Home / 381,868.36-572,876.29-145,192.64

Finding the Fourth Proportional to 381,868.36, 572,876.29 and 145,192.64

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Solution

The fourth proportional to 381,868.36, 572,876.29 and 145,192.64 is: 217,817.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,868.36 : 572,876.29 = 145,192.64 : x
  2. Step 2: Convert to fraction form
    381,868.36/572,876.29 = 145,192.64/x
  3. Step 3: Cross multiply
    381,868.36x = 572,876.29 × 145,192.64
  4. Step 4: Simplify right side
    381,868.36x = 83,177,420,938.51
  5. Step 5: Solve for x
    x = 83,177,420,938.51/381,868.36
  6. Step 6: Final answer
    x = 217,817.00

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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.