Home / 211,353.51-317,071.83-78,234.93

Finding the Fourth Proportional to 211,353.51, 317,071.83 and 78,234.93

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Solution

The fourth proportional to 211,353.51, 317,071.83 and 78,234.93 is: 117,367.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,353.51 : 317,071.83 = 78,234.93 : x
  2. Step 2: Convert to fraction form
    211,353.51/317,071.83 = 78,234.93/x
  3. Step 3: Cross multiply
    211,353.51x = 317,071.83 × 78,234.93
  4. Step 4: Simplify right side
    211,353.51x = 24,806,092,718.40
  5. Step 5: Solve for x
    x = 24,806,092,718.40/211,353.51
  6. Step 6: Final answer
    x = 117,367.78

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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.