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Finding the Fourth Proportional to 319,291.44, 478,939.03 and 94,653.82

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Solution

The fourth proportional to 319,291.44, 478,939.03 and 94,653.82 is: 141,981.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,291.44 : 478,939.03 = 94,653.82 : x
  2. Step 2: Convert to fraction form
    319,291.44/478,939.03 = 94,653.82/x
  3. Step 3: Cross multiply
    319,291.44x = 478,939.03 × 94,653.82
  4. Step 4: Simplify right side
    319,291.44x = 45,333,406,404.60
  5. Step 5: Solve for x
    x = 45,333,406,404.60/319,291.44
  6. Step 6: Final answer
    x = 141,981.27

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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.