Home / 207,721.20-310,925.70-163,106.40

Finding the Fourth Proportional to 207,721.20, 310,925.70 and 163,106.40

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Solution

The fourth proportional to 207,721.20, 310,925.70 and 163,106.40 is: 244,144.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,721.20 : 310,925.70 = 163,106.40 : x
  2. Step 2: Convert to fraction form
    207,721.20/310,925.70 = 163,106.40/x
  3. Step 3: Cross multiply
    207,721.20x = 310,925.70 × 163,106.40
  4. Step 4: Simplify right side
    207,721.20x = 50,713,971,594.48
  5. Step 5: Solve for x
    x = 50,713,971,594.48/207,721.20
  6. Step 6: Final answer
    x = 244,144.42

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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.