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Finding the Fourth Proportional to 306,717.60, 460,076.40 and 156,908.10

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Solution

The fourth proportional to 306,717.60, 460,076.40 and 156,908.10 is: 235,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,717.60 : 460,076.40 = 156,908.10 : x
  2. Step 2: Convert to fraction form
    306,717.60/460,076.40 = 156,908.10/x
  3. Step 3: Cross multiply
    306,717.60x = 460,076.40 × 156,908.10
  4. Step 4: Simplify right side
    306,717.60x = 72,189,713,778.84
  5. Step 5: Solve for x
    x = 72,189,713,778.84/306,717.60
  6. Step 6: Final answer
    x = 235,362.15

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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.