Home / 217,490.43-300,075.12-126,850.35

Finding the Fourth Proportional to 217,490.43, 300,075.12 and 126,850.35

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Solution

The fourth proportional to 217,490.43, 300,075.12 and 126,850.35 is: 175,017.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,490.43 : 300,075.12 = 126,850.35 : x
  2. Step 2: Convert to fraction form
    217,490.43/300,075.12 = 126,850.35/x
  3. Step 3: Cross multiply
    217,490.43x = 300,075.12 × 126,850.35
  4. Step 4: Simplify right side
    217,490.43x = 38,064,633,998.29
  5. Step 5: Solve for x
    x = 38,064,633,998.29/217,490.43
  6. Step 6: Final answer
    x = 175,017.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.