Home / 319,292.46-478,975.76-106,079.40

Finding the Fourth Proportional to 319,292.46, 478,975.76 and 106,079.40

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Solution

The fourth proportional to 319,292.46, 478,975.76 and 106,079.40 is: 159,131.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,292.46 : 478,975.76 = 106,079.40 : x
  2. Step 2: Convert to fraction form
    319,292.46/478,975.76 = 106,079.40/x
  3. Step 3: Cross multiply
    319,292.46x = 478,975.76 × 106,079.40
  4. Step 4: Simplify right side
    319,292.46x = 50,809,461,235.34
  5. Step 5: Solve for x
    x = 50,809,461,235.34/319,292.46
  6. Step 6: Final answer
    x = 159,131.42

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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.