Home / 381,889.35-572,916.65-145,236.51

Finding the Fourth Proportional to 381,889.35, 572,916.65 and 145,236.51

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Solution

The fourth proportional to 381,889.35, 572,916.65 and 145,236.51 is: 217,886.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,889.35 : 572,916.65 = 145,236.51 : x
  2. Step 2: Convert to fraction form
    381,889.35/572,916.65 = 145,236.51/x
  3. Step 3: Cross multiply
    381,889.35x = 572,916.65 × 145,236.51
  4. Step 4: Simplify right side
    381,889.35x = 83,208,414,040.71
  5. Step 5: Solve for x
    x = 83,208,414,040.71/381,889.35
  6. Step 6: Final answer
    x = 217,886.19

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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.