Home / 211,528.46-317,416.93-78,501.15

Finding the Fourth Proportional to 211,528.46, 317,416.93 and 78,501.15

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Solution

The fourth proportional to 211,528.46, 317,416.93 and 78,501.15 is: 117,797.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,528.46 : 317,416.93 = 78,501.15 : x
  2. Step 2: Convert to fraction form
    211,528.46/317,416.93 = 78,501.15/x
  3. Step 3: Cross multiply
    211,528.46x = 317,416.93 × 78,501.15
  4. Step 4: Simplify right side
    211,528.46x = 24,917,593,838.22
  5. Step 5: Solve for x
    x = 24,917,593,838.22/211,528.46
  6. Step 6: Final answer
    x = 117,797.83

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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.