Home / 209,005.64-313,506.78-124,204.20

Finding the Fourth Proportional to 209,005.64, 313,506.78 and 124,204.20

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Solution

The fourth proportional to 209,005.64, 313,506.78 and 124,204.20 is: 186,305.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,005.64 : 313,506.78 = 124,204.20 : x
  2. Step 2: Convert to fraction form
    209,005.64/313,506.78 = 124,204.20/x
  3. Step 3: Cross multiply
    209,005.64x = 313,506.78 × 124,204.20
  4. Step 4: Simplify right side
    209,005.64x = 38,938,858,804.48
  5. Step 5: Solve for x
    x = 38,938,858,804.48/209,005.64
  6. Step 6: Final answer
    x = 186,305.31

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1.5x scale

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.