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Finding the Fourth Proportional to 210,364.80, 314,932.80 and 188,246.40

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Solution

The fourth proportional to 210,364.80, 314,932.80 and 188,246.40 is: 281,819.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,364.80 : 314,932.80 = 188,246.40 : x
  2. Step 2: Convert to fraction form
    210,364.80/314,932.80 = 188,246.40/x
  3. Step 3: Cross multiply
    210,364.80x = 314,932.80 × 188,246.40
  4. Step 4: Simplify right side
    210,364.80x = 59,284,965,841.92
  5. Step 5: Solve for x
    x = 59,284,965,841.92/210,364.80
  6. Step 6: Final answer
    x = 281,819.80

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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.