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Finding the Fourth Proportional to 210,369.80, 314,940.30 and 188,251.40

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Solution

The fourth proportional to 210,369.80, 314,940.30 and 188,251.40 is: 281,827.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,369.80 : 314,940.30 = 188,251.40 : x
  2. Step 2: Convert to fraction form
    210,369.80/314,940.30 = 188,251.40/x
  3. Step 3: Cross multiply
    210,369.80x = 314,940.30 × 188,251.40
  4. Step 4: Simplify right side
    210,369.80x = 59,287,952,391.42
  5. Step 5: Solve for x
    x = 59,287,952,391.42/210,369.80
  6. Step 6: Final answer
    x = 281,827.30

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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.