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Finding the Fourth Proportional to 210,366.80, 314,935.80 and 188,248.40

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Solution

The fourth proportional to 210,366.80, 314,935.80 and 188,248.40 is: 281,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,366.80 : 314,935.80 = 188,248.40 : x
  2. Step 2: Convert to fraction form
    210,366.80/314,935.80 = 188,248.40/x
  3. Step 3: Cross multiply
    210,366.80x = 314,935.80 × 188,248.40
  4. Step 4: Simplify right side
    210,366.80x = 59,286,160,452.72
  5. Step 5: Solve for x
    x = 59,286,160,452.72/210,366.80
  6. Step 6: Final answer
    x = 281,822.80

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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.