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Finding the Fourth Proportional to 284,581.72, 392,727.96 and 155,525.67

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Solution

The fourth proportional to 284,581.72, 392,727.96 and 155,525.67 is: 214,628.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,581.72 : 392,727.96 = 155,525.67 : x
  2. Step 2: Convert to fraction form
    284,581.72/392,727.96 = 155,525.67/x
  3. Step 3: Cross multiply
    284,581.72x = 392,727.96 × 155,525.67
  4. Step 4: Simplify right side
    284,581.72x = 61,079,279,106.73
  5. Step 5: Solve for x
    x = 61,079,279,106.73/284,581.72
  6. Step 6: Final answer
    x = 214,628.26

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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.