Home / 210,922.60-315,923.10-163,805.80

Finding the Fourth Proportional to 210,922.60, 315,923.10 and 163,805.80

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Solution

The fourth proportional to 210,922.60, 315,923.10 and 163,805.80 is: 245,350.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,922.60 : 315,923.10 = 163,805.80 : x
  2. Step 2: Convert to fraction form
    210,922.60/315,923.10 = 163,805.80/x
  3. Step 3: Cross multiply
    210,922.60x = 315,923.10 × 163,805.80
  4. Step 4: Simplify right side
    210,922.60x = 51,750,036,133.98
  5. Step 5: Solve for x
    x = 51,750,036,133.98/210,922.60
  6. Step 6: Final answer
    x = 245,350.84

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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.