Home / 212,860.17-319,290.25-55,088.16

Finding the Fourth Proportional to 212,860.17, 319,290.25 and 55,088.16

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Solution

The fourth proportional to 212,860.17, 319,290.25 and 55,088.16 is: 82,632.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,860.17 : 319,290.25 = 55,088.16 : x
  2. Step 2: Convert to fraction form
    212,860.17/319,290.25 = 55,088.16/x
  3. Step 3: Cross multiply
    212,860.17x = 319,290.25 × 55,088.16
  4. Step 4: Simplify right side
    212,860.17x = 17,589,112,378.44
  5. Step 5: Solve for x
    x = 17,589,112,378.44/212,860.17
  6. Step 6: Final answer
    x = 82,632.24

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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.