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Finding the Fourth Proportional to 207,624.20, 310,780.20 and 163,009.40

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Solution

The fourth proportional to 207,624.20, 310,780.20 and 163,009.40 is: 243,998.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,624.20 : 310,780.20 = 163,009.40 : x
  2. Step 2: Convert to fraction form
    207,624.20/310,780.20 = 163,009.40/x
  3. Step 3: Cross multiply
    207,624.20x = 310,780.20 × 163,009.40
  4. Step 4: Simplify right side
    207,624.20x = 50,660,093,933.88
  5. Step 5: Solve for x
    x = 50,660,093,933.88/207,624.20
  6. Step 6: Final answer
    x = 243,998.98

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1.5x scale

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.