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Finding the Fourth Proportional to 331,495.40, 497,243.10 and 191,527.40

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Solution

The fourth proportional to 331,495.40, 497,243.10 and 191,527.40 is: 287,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,495.40 : 497,243.10 = 191,527.40 : x
  2. Step 2: Convert to fraction form
    331,495.40/497,243.10 = 191,527.40/x
  3. Step 3: Cross multiply
    331,495.40x = 497,243.10 × 191,527.40
  4. Step 4: Simplify right side
    331,495.40x = 95,235,678,110.94
  5. Step 5: Solve for x
    x = 95,235,678,110.94/331,495.40
  6. Step 6: Final answer
    x = 287,291.10

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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.