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Finding the Fourth Proportional to 497,378.05, 746,356.56 and 209,168.98

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Solution

The fourth proportional to 497,378.05, 746,356.56 and 209,168.98 is: 313,875.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,378.05 : 746,356.56 = 209,168.98 : x
  2. Step 2: Convert to fraction form
    497,378.05/746,356.56 = 209,168.98/x
  3. Step 3: Cross multiply
    497,378.05x = 746,356.56 × 209,168.98
  4. Step 4: Simplify right side
    497,378.05x = 156,114,640,371.51
  5. Step 5: Solve for x
    x = 156,114,640,371.51/497,378.05
  6. Step 6: Final answer
    x = 313,875.21

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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.