Home / 306,036.20-459,054.30-212,724.20

Finding the Fourth Proportional to 306,036.20, 459,054.30 and 212,724.20

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Solution

The fourth proportional to 306,036.20, 459,054.30 and 212,724.20 is: 319,086.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,036.20 : 459,054.30 = 212,724.20 : x
  2. Step 2: Convert to fraction form
    306,036.20/459,054.30 = 212,724.20/x
  3. Step 3: Cross multiply
    306,036.20x = 459,054.30 × 212,724.20
  4. Step 4: Simplify right side
    306,036.20x = 97,651,958,724.06
  5. Step 5: Solve for x
    x = 97,651,958,724.06/306,036.20
  6. Step 6: Final answer
    x = 319,086.30

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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.