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Finding the Fourth Proportional to 118,837.28, 178,254.02 and 28,880.72

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Solution

The fourth proportional to 118,837.28, 178,254.02 and 28,880.72 is: 43,320.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,837.28 : 178,254.02 = 28,880.72 : x
  2. Step 2: Convert to fraction form
    118,837.28/178,254.02 = 28,880.72/x
  3. Step 3: Cross multiply
    118,837.28x = 178,254.02 × 28,880.72
  4. Step 4: Simplify right side
    118,837.28x = 5,148,104,440.49
  5. Step 5: Solve for x
    x = 5,148,104,440.49/118,837.28
  6. Step 6: Final answer
    x = 43,320.62

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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.