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Finding the Fourth Proportional to 319,851.23, 478,735.23 and 235,578.20

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Solution

The fourth proportional to 319,851.23, 478,735.23 and 235,578.20 is: 352,600.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,851.23 : 478,735.23 = 235,578.20 : x
  2. Step 2: Convert to fraction form
    319,851.23/478,735.23 = 235,578.20/x
  3. Step 3: Cross multiply
    319,851.23x = 478,735.23 × 235,578.20
  4. Step 4: Simplify right side
    319,851.23x = 112,779,583,759.99
  5. Step 5: Solve for x
    x = 112,779,583,759.99/319,851.23
  6. Step 6: Final answer
    x = 352,600.13

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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.