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Finding the Fourth Proportional to 487,164.58, 672,259.91 and 269,360.64

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Solution

The fourth proportional to 487,164.58, 672,259.91 and 269,360.64 is: 371,702.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,164.58 : 672,259.91 = 269,360.64 : x
  2. Step 2: Convert to fraction form
    487,164.58/672,259.91 = 269,360.64/x
  3. Step 3: Cross multiply
    487,164.58x = 672,259.91 × 269,360.64
  4. Step 4: Simplify right side
    487,164.58x = 181,080,358,257.14
  5. Step 5: Solve for x
    x = 181,080,358,257.14/487,164.58
  6. Step 6: Final answer
    x = 371,702.64

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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.