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Finding the Fourth Proportional to 342,075.55, 512,895.98 and 300,040.04

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Solution

The fourth proportional to 342,075.55, 512,895.98 and 300,040.04 is: 449,869.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,075.55 : 512,895.98 = 300,040.04 : x
  2. Step 2: Convert to fraction form
    342,075.55/512,895.98 = 300,040.04/x
  3. Step 3: Cross multiply
    342,075.55x = 512,895.98 × 300,040.04
  4. Step 4: Simplify right side
    342,075.55x = 153,889,332,387.38
  5. Step 5: Solve for x
    x = 153,889,332,387.38/342,075.55
  6. Step 6: Final answer
    x = 449,869.43

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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.