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Finding the Fourth Proportional to 492,541.10, 679,706.72 and 266,186.60

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Solution

The fourth proportional to 492,541.10, 679,706.72 and 266,186.60 is: 367,337.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,541.10 : 679,706.72 = 266,186.60 : x
  2. Step 2: Convert to fraction form
    492,541.10/679,706.72 = 266,186.60/x
  3. Step 3: Cross multiply
    492,541.10x = 679,706.72 × 266,186.60
  4. Step 4: Simplify right side
    492,541.10x = 180,928,819,463.02
  5. Step 5: Solve for x
    x = 180,928,819,463.02/492,541.10
  6. Step 6: Final answer
    x = 367,337.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.