Home / 211,352.76-317,070.56-78,234.16

Finding the Fourth Proportional to 211,352.76, 317,070.56 and 78,234.16

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Solution

The fourth proportional to 211,352.76, 317,070.56 and 78,234.16 is: 117,366.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,352.76 : 317,070.56 = 78,234.16 : x
  2. Step 2: Convert to fraction form
    211,352.76/317,070.56 = 78,234.16/x
  3. Step 3: Cross multiply
    211,352.76x = 317,070.56 × 78,234.16
  4. Step 4: Simplify right side
    211,352.76x = 24,805,748,922.33
  5. Step 5: Solve for x
    x = 24,805,748,922.33/211,352.76
  6. Step 6: Final answer
    x = 117,366.57

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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.