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Finding the Fourth Proportional to 319,045.61, 478,577.69 and 119,327.88

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Solution

The fourth proportional to 319,045.61, 478,577.69 and 119,327.88 is: 178,995.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,045.61 : 478,577.69 = 119,327.88 : x
  2. Step 2: Convert to fraction form
    319,045.61/478,577.69 = 119,327.88/x
  3. Step 3: Cross multiply
    319,045.61x = 478,577.69 × 119,327.88
  4. Step 4: Simplify right side
    319,045.61x = 57,107,660,566.36
  5. Step 5: Solve for x
    x = 57,107,660,566.36/319,045.61
  6. Step 6: Final answer
    x = 178,995.29

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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.