Home / 211,346.76-317,061.58-78,228.14

Finding the Fourth Proportional to 211,346.76, 317,061.58 and 78,228.14

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Solution

The fourth proportional to 211,346.76, 317,061.58 and 78,228.14 is: 117,357.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,346.76 : 317,061.58 = 78,228.14 : x
  2. Step 2: Convert to fraction form
    211,346.76/317,061.58 = 78,228.14/x
  3. Step 3: Cross multiply
    211,346.76x = 317,061.58 × 78,228.14
  4. Step 4: Simplify right side
    211,346.76x = 24,803,137,668.86
  5. Step 5: Solve for x
    x = 24,803,137,668.86/211,346.76
  6. Step 6: Final answer
    x = 117,357.55

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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.