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Finding the Fourth Proportional to 212,036.84, 318,162.88 and 141,008.88

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Solution

The fourth proportional to 212,036.84, 318,162.88 and 141,008.88 is: 211,584.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,036.84 : 318,162.88 = 141,008.88 : x
  2. Step 2: Convert to fraction form
    212,036.84/318,162.88 = 141,008.88/x
  3. Step 3: Cross multiply
    212,036.84x = 318,162.88 × 141,008.88
  4. Step 4: Simplify right side
    212,036.84x = 44,863,791,366.37
  5. Step 5: Solve for x
    x = 44,863,791,366.37/212,036.84
  6. Step 6: Final answer
    x = 211,584.89

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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.