Home / 205,438.10-308,132.85-55,669.10

Finding the Fourth Proportional to 205,438.10, 308,132.85 and 55,669.10

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Solution

The fourth proportional to 205,438.10, 308,132.85 and 55,669.10 is: 83,497.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,438.10 : 308,132.85 = 55,669.10 : x
  2. Step 2: Convert to fraction form
    205,438.10/308,132.85 = 55,669.10/x
  3. Step 3: Cross multiply
    205,438.10x = 308,132.85 × 55,669.10
  4. Step 4: Simplify right side
    205,438.10x = 17,153,478,439.94
  5. Step 5: Solve for x
    x = 17,153,478,439.94/205,438.10
  6. Step 6: Final answer
    x = 83,497.07

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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.