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Finding the Fourth Proportional to 463,261.68, 639,307.64 and 266,919.66

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Solution

The fourth proportional to 463,261.68, 639,307.64 and 266,919.66 is: 368,352.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,261.68 : 639,307.64 = 266,919.66 : x
  2. Step 2: Convert to fraction form
    463,261.68/639,307.64 = 266,919.66/x
  3. Step 3: Cross multiply
    463,261.68x = 639,307.64 × 266,919.66
  4. Step 4: Simplify right side
    463,261.68x = 170,643,778,571.50
  5. Step 5: Solve for x
    x = 170,643,778,571.50/463,261.68
  6. Step 6: Final answer
    x = 368,352.89

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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.