Home / 381,731.84-572,664.84-145,095.20

Finding the Fourth Proportional to 381,731.84, 572,664.84 and 145,095.20

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Solution

The fourth proportional to 381,731.84, 572,664.84 and 145,095.20 is: 217,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,731.84 : 572,664.84 = 145,095.20 : x
  2. Step 2: Convert to fraction form
    381,731.84/572,664.84 = 145,095.20/x
  3. Step 3: Cross multiply
    381,731.84x = 572,664.84 × 145,095.20
  4. Step 4: Simplify right side
    381,731.84x = 83,090,919,492.77
  5. Step 5: Solve for x
    x = 83,090,919,492.77/381,731.84
  6. Step 6: Final answer
    x = 217,668.30

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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.