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Finding the Fourth Proportional to 306,557.02, 459,701.48 and 154,660.65

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Solution

The fourth proportional to 306,557.02, 459,701.48 and 154,660.65 is: 231,923.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,557.02 : 459,701.48 = 154,660.65 : x
  2. Step 2: Convert to fraction form
    306,557.02/459,701.48 = 154,660.65/x
  3. Step 3: Cross multiply
    306,557.02x = 459,701.48 × 154,660.65
  4. Step 4: Simplify right side
    306,557.02x = 71,097,727,017.60
  5. Step 5: Solve for x
    x = 71,097,727,017.60/306,557.02
  6. Step 6: Final answer
    x = 231,923.34

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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.