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Finding the Fourth Proportional to 223,703.65, 308,710.92 and 123,101.65

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Solution

The fourth proportional to 223,703.65, 308,710.92 and 123,101.65 is: 169,880.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,703.65 : 308,710.92 = 123,101.65 : x
  2. Step 2: Convert to fraction form
    223,703.65/308,710.92 = 123,101.65/x
  3. Step 3: Cross multiply
    223,703.65x = 308,710.92 × 123,101.65
  4. Step 4: Simplify right side
    223,703.65x = 38,002,823,625.02
  5. Step 5: Solve for x
    x = 38,002,823,625.02/223,703.65
  6. Step 6: Final answer
    x = 169,880.21

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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.