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Finding the Fourth Proportional to 487,154.69, 672,287.63 and 266,404.96

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Solution

The fourth proportional to 487,154.69, 672,287.63 and 266,404.96 is: 367,646.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,154.69 : 672,287.63 = 266,404.96 : x
  2. Step 2: Convert to fraction form
    487,154.69/672,287.63 = 266,404.96/x
  3. Step 3: Cross multiply
    487,154.69x = 672,287.63 × 266,404.96
  4. Step 4: Simplify right side
    487,154.69x = 179,100,759,178.65
  5. Step 5: Solve for x
    x = 179,100,759,178.65/487,154.69
  6. Step 6: Final answer
    x = 367,646.59

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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.