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Finding the Fourth Proportional to 191,601.40, 287,402.10 and 191,601.40

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Solution

The fourth proportional to 191,601.40, 287,402.10 and 191,601.40 is: 287,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,601.40 : 287,402.10 = 191,601.40 : x
  2. Step 2: Convert to fraction form
    191,601.40/287,402.10 = 191,601.40/x
  3. Step 3: Cross multiply
    191,601.40x = 287,402.10 × 191,601.40
  4. Step 4: Simplify right side
    191,601.40x = 55,066,644,722.94
  5. Step 5: Solve for x
    x = 55,066,644,722.94/191,601.40
  6. Step 6: Final answer
    x = 287,402.10

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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.