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Finding the Fourth Proportional to 185,262.72, 277,899.74 and 128,280.84

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Solution

The fourth proportional to 185,262.72, 277,899.74 and 128,280.84 is: 192,425.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,262.72 : 277,899.74 = 128,280.84 : x
  2. Step 2: Convert to fraction form
    185,262.72/277,899.74 = 128,280.84/x
  3. Step 3: Cross multiply
    185,262.72x = 277,899.74 × 128,280.84
  4. Step 4: Simplify right side
    185,262.72x = 35,649,212,082.98
  5. Step 5: Solve for x
    x = 35,649,212,082.98/185,262.72
  6. Step 6: Final answer
    x = 192,425.18

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1.5x scale

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.