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Finding the Fourth Proportional to 266,487, 367,756.88 and 145,633.38

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Solution

The fourth proportional to 266,487, 367,756.88 and 145,633.38 is: 200,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,487 : 367,756.88 = 145,633.38 : x
  2. Step 2: Convert to fraction form
    266,487/367,756.88 = 145,633.38/x
  3. Step 3: Cross multiply
    266,487x = 367,756.88 × 145,633.38
  4. Step 4: Simplify right side
    266,487x = 53,557,677,452.65
  5. Step 5: Solve for x
    x = 53,557,677,452.65/266,487
  6. Step 6: Final answer
    x = 200,976.70

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1.5x scale

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.