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Finding the Fourth Proportional to 319,373.37, 478,978.29 and 94,681.26

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Solution

The fourth proportional to 319,373.37, 478,978.29 and 94,681.26 is: 141,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,373.37 : 478,978.29 = 94,681.26 : x
  2. Step 2: Convert to fraction form
    319,373.37/478,978.29 = 94,681.26/x
  3. Step 3: Cross multiply
    319,373.37x = 478,978.29 × 94,681.26
  4. Step 4: Simplify right side
    319,373.37x = 45,350,268,009.85
  5. Step 5: Solve for x
    x = 45,350,268,009.85/319,373.37
  6. Step 6: Final answer
    x = 141,997.65

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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.