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Finding the Fourth Proportional to 273,705.69, 377,372.23 and 209,254.80

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Solution

The fourth proportional to 273,705.69, 377,372.23 and 209,254.80 is: 288,510.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,705.69 : 377,372.23 = 209,254.80 : x
  2. Step 2: Convert to fraction form
    273,705.69/377,372.23 = 209,254.80/x
  3. Step 3: Cross multiply
    273,705.69x = 377,372.23 × 209,254.80
  4. Step 4: Simplify right side
    273,705.69x = 78,966,950,514.20
  5. Step 5: Solve for x
    x = 78,966,950,514.20/273,705.69
  6. Step 6: Final answer
    x = 288,510.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.