Home / 397,642.72-548,566.14-236,406.28

Finding the Fourth Proportional to 397,642.72, 548,566.14 and 236,406.28

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Solution

The fourth proportional to 397,642.72, 548,566.14 and 236,406.28 is: 326,133.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,642.72 : 548,566.14 = 236,406.28 : x
  2. Step 2: Convert to fraction form
    397,642.72/548,566.14 = 236,406.28/x
  3. Step 3: Cross multiply
    397,642.72x = 548,566.14 × 236,406.28
  4. Step 4: Simplify right side
    397,642.72x = 129,684,480,491.36
  5. Step 5: Solve for x
    x = 129,684,480,491.36/397,642.72
  6. Step 6: Final answer
    x = 326,133.17

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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.