Home / 208,478.78-312,718.17-50,707.34

Finding the Fourth Proportional to 208,478.78, 312,718.17 and 50,707.34

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Solution

The fourth proportional to 208,478.78, 312,718.17 and 50,707.34 is: 76,061.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,478.78 : 312,718.17 = 50,707.34 : x
  2. Step 2: Convert to fraction form
    208,478.78/312,718.17 = 50,707.34/x
  3. Step 3: Cross multiply
    208,478.78x = 312,718.17 × 50,707.34
  4. Step 4: Simplify right side
    208,478.78x = 15,857,106,570.37
  5. Step 5: Solve for x
    x = 15,857,106,570.37/208,478.78
  6. Step 6: Final answer
    x = 76,061.01

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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.