Home / 319,024.36-478,538.40-82,350.88

Finding the Fourth Proportional to 319,024.36, 478,538.40 and 82,350.88

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Solution

The fourth proportional to 319,024.36, 478,538.40 and 82,350.88 is: 123,526.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,024.36 : 478,538.40 = 82,350.88 : x
  2. Step 2: Convert to fraction form
    319,024.36/478,538.40 = 82,350.88/x
  3. Step 3: Cross multiply
    319,024.36x = 478,538.40 × 82,350.88
  4. Step 4: Simplify right side
    319,024.36x = 39,408,058,353.79
  5. Step 5: Solve for x
    x = 39,408,058,353.79/319,024.36
  6. Step 6: Final answer
    x = 123,526.80

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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.