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Finding the Fourth Proportional to 245,321.30, 367,981.95 and 210,329.30

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Solution

The fourth proportional to 245,321.30, 367,981.95 and 210,329.30 is: 315,493.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,321.30 : 367,981.95 = 210,329.30 : x
  2. Step 2: Convert to fraction form
    245,321.30/367,981.95 = 210,329.30/x
  3. Step 3: Cross multiply
    245,321.30x = 367,981.95 × 210,329.30
  4. Step 4: Simplify right side
    245,321.30x = 77,397,385,956.14
  5. Step 5: Solve for x
    x = 77,397,385,956.14/245,321.30
  6. Step 6: Final answer
    x = 315,493.95

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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.