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Finding the Fourth Proportional to 284,608.59, 392,761.08 and 155,549.67

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Solution

The fourth proportional to 284,608.59, 392,761.08 and 155,549.67 is: 214,659.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,608.59 : 392,761.08 = 155,549.67 : x
  2. Step 2: Convert to fraction form
    284,608.59/392,761.08 = 155,549.67/x
  3. Step 3: Cross multiply
    284,608.59x = 392,761.08 × 155,549.67
  4. Step 4: Simplify right side
    284,608.59x = 61,093,856,382.84
  5. Step 5: Solve for x
    x = 61,093,856,382.84/284,608.59
  6. Step 6: Final answer
    x = 214,659.21

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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.