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Finding the Fourth Proportional to 492,607.50, 679,799.16 and 266,253

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Solution

The fourth proportional to 492,607.50, 679,799.16 and 266,253 is: 367,429.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,607.50 : 679,799.16 = 266,253 : x
  2. Step 2: Convert to fraction form
    492,607.50/679,799.16 = 266,253/x
  3. Step 3: Cross multiply
    492,607.50x = 679,799.16 × 266,253
  4. Step 4: Simplify right side
    492,607.50x = 180,998,565,747.48
  5. Step 5: Solve for x
    x = 180,998,565,747.48/492,607.50
  6. Step 6: Final answer
    x = 367,429.58

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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.