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Finding the Fourth Proportional to 319,255.56, 478,929.81 and 94,586.87

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Solution

The fourth proportional to 319,255.56, 478,929.81 and 94,586.87 is: 141,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,255.56 : 478,929.81 = 94,586.87 : x
  2. Step 2: Convert to fraction form
    319,255.56/478,929.81 = 94,586.87/x
  3. Step 3: Cross multiply
    319,255.56x = 478,929.81 × 94,586.87
  4. Step 4: Simplify right side
    319,255.56x = 45,300,473,229.62
  5. Step 5: Solve for x
    x = 45,300,473,229.62/319,255.56
  6. Step 6: Final answer
    x = 141,894.08

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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.