Home / 262,205.10-393,315.89-84,713.72

Finding the Fourth Proportional to 262,205.10, 393,315.89 and 84,713.72

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Solution

The fourth proportional to 262,205.10, 393,315.89 and 84,713.72 is: 127,073.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,205.10 : 393,315.89 = 84,713.72 : x
  2. Step 2: Convert to fraction form
    262,205.10/393,315.89 = 84,713.72/x
  3. Step 3: Cross multiply
    262,205.10x = 393,315.89 × 84,713.72
  4. Step 4: Simplify right side
    262,205.10x = 33,319,249,786.86
  5. Step 5: Solve for x
    x = 33,319,249,786.86/262,205.10
  6. Step 6: Final answer
    x = 127,073.23

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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.