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Finding the Fourth Proportional to 319,154.56, 478,324.80 and 169,466.56

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Solution

The fourth proportional to 319,154.56, 478,324.80 and 169,466.56 is: 253,983.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,154.56 : 478,324.80 = 169,466.56 : x
  2. Step 2: Convert to fraction form
    319,154.56/478,324.80 = 169,466.56/x
  3. Step 3: Cross multiply
    319,154.56x = 478,324.80 × 169,466.56
  4. Step 4: Simplify right side
    319,154.56x = 81,060,058,418.69
  5. Step 5: Solve for x
    x = 81,060,058,418.69/319,154.56
  6. Step 6: Final answer
    x = 253,983.71

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1.5x scale

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.