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Finding the Fourth Proportional to 340,527.65, 510,790.05 and 103,869.54

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Solution

The fourth proportional to 340,527.65, 510,790.05 and 103,869.54 is: 155,803.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,527.65 : 510,790.05 = 103,869.54 : x
  2. Step 2: Convert to fraction form
    340,527.65/510,790.05 = 103,869.54/x
  3. Step 3: Cross multiply
    340,527.65x = 510,790.05 × 103,869.54
  4. Step 4: Simplify right side
    340,527.65x = 53,055,527,530.08
  5. Step 5: Solve for x
    x = 53,055,527,530.08/340,527.65
  6. Step 6: Final answer
    x = 155,803.88

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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.