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Finding the Fourth Proportional to 478,848, 718,375.68 and 183,360

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Solution

The fourth proportional to 478,848, 718,375.68 and 183,360 is: 275,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,848 : 718,375.68 = 183,360 : x
  2. Step 2: Convert to fraction form
    478,848/718,375.68 = 183,360/x
  3. Step 3: Cross multiply
    478,848x = 718,375.68 × 183,360
  4. Step 4: Simplify right side
    478,848x = 131,721,364,684.80
  5. Step 5: Solve for x
    x = 131,721,364,684.80/478,848
  6. Step 6: Final answer
    x = 275,079.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.