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Finding the Fourth Proportional to 278,424.01, 384,223.08 and 151,096.87

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Solution

The fourth proportional to 278,424.01, 384,223.08 and 151,096.87 is: 208,512.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,424.01 : 384,223.08 = 151,096.87 : x
  2. Step 2: Convert to fraction form
    278,424.01/384,223.08 = 151,096.87/x
  3. Step 3: Cross multiply
    278,424.01x = 384,223.08 × 151,096.87
  4. Step 4: Simplify right side
    278,424.01x = 58,054,904,769.76
  5. Step 5: Solve for x
    x = 58,054,904,769.76/278,424.01
  6. Step 6: Final answer
    x = 208,512.57

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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.