Home / 319,664.05-479,442.61-117,218.32

Finding the Fourth Proportional to 319,664.05, 479,442.61 and 117,218.32

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Solution

The fourth proportional to 319,664.05, 479,442.61 and 117,218.32 is: 175,807.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,664.05 : 479,442.61 = 117,218.32 : x
  2. Step 2: Convert to fraction form
    319,664.05/479,442.61 = 117,218.32/x
  3. Step 3: Cross multiply
    319,664.05x = 479,442.61 × 117,218.32
  4. Step 4: Simplify right side
    319,664.05x = 56,199,457,280.62
  5. Step 5: Solve for x
    x = 56,199,457,280.62/319,664.05
  6. Step 6: Final answer
    x = 175,807.87

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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.