Home / 306,025.95-422,314.20-168,208.05

Finding the Fourth Proportional to 306,025.95, 422,314.20 and 168,208.05

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Solution

The fourth proportional to 306,025.95, 422,314.20 and 168,208.05 is: 232,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,025.95 : 422,314.20 = 168,208.05 : x
  2. Step 2: Convert to fraction form
    306,025.95/422,314.20 = 168,208.05/x
  3. Step 3: Cross multiply
    306,025.95x = 422,314.20 × 168,208.05
  4. Step 4: Simplify right side
    306,025.95x = 71,036,648,069.31
  5. Step 5: Solve for x
    x = 71,036,648,069.31/306,025.95
  6. Step 6: Final answer
    x = 232,126.22

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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.