Home / 319,273.47-478,688.75-169,618.86

Finding the Fourth Proportional to 319,273.47, 478,688.75 and 169,618.86

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Solution

The fourth proportional to 319,273.47, 478,688.75 and 169,618.86 is: 254,310.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,273.47 : 478,688.75 = 169,618.86 : x
  2. Step 2: Convert to fraction form
    319,273.47/478,688.75 = 169,618.86/x
  3. Step 3: Cross multiply
    319,273.47x = 478,688.75 × 169,618.86
  4. Step 4: Simplify right side
    319,273.47x = 81,194,641,690.59
  5. Step 5: Solve for x
    x = 81,194,641,690.59/319,273.47
  6. Step 6: Final answer
    x = 254,310.64

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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.