Home / 319,217.48-478,935.60-109,003.04

Finding the Fourth Proportional to 319,217.48, 478,935.60 and 109,003.04

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Solution

The fourth proportional to 319,217.48, 478,935.60 and 109,003.04 is: 163,541.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,217.48 : 478,935.60 = 109,003.04 : x
  2. Step 2: Convert to fraction form
    319,217.48/478,935.60 = 109,003.04/x
  3. Step 3: Cross multiply
    319,217.48x = 478,935.60 × 109,003.04
  4. Step 4: Simplify right side
    319,217.48x = 52,205,436,364.22
  5. Step 5: Solve for x
    x = 52,205,436,364.22/319,217.48
  6. Step 6: Final answer
    x = 163,541.91

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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.