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Finding the Fourth Proportional to 192,005.40, 287,489.70 and 192,005.40

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Solution

The fourth proportional to 192,005.40, 287,489.70 and 192,005.40 is: 287,489.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,005.40 : 287,489.70 = 192,005.40 : x
  2. Step 2: Convert to fraction form
    192,005.40/287,489.70 = 192,005.40/x
  3. Step 3: Cross multiply
    192,005.40x = 287,489.70 × 192,005.40
  4. Step 4: Simplify right side
    192,005.40x = 55,199,574,844.38
  5. Step 5: Solve for x
    x = 55,199,574,844.38/192,005.40
  6. Step 6: Final answer
    x = 287,489.70

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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.