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Finding the Fourth Proportional to 213,870.74, 295,108.56 and 123,208.97

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Solution

The fourth proportional to 213,870.74, 295,108.56 and 123,208.97 is: 170,009.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,870.74 : 295,108.56 = 123,208.97 : x
  2. Step 2: Convert to fraction form
    213,870.74/295,108.56 = 123,208.97/x
  3. Step 3: Cross multiply
    213,870.74x = 295,108.56 × 123,208.97
  4. Step 4: Simplify right side
    213,870.74x = 36,360,020,240.24
  5. Step 5: Solve for x
    x = 36,360,020,240.24/213,870.74
  6. Step 6: Final answer
    x = 170,009.33

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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.