Home / 321,632.20-482,045.10-163,923.40

Finding the Fourth Proportional to 321,632.20, 482,045.10 and 163,923.40

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Solution

The fourth proportional to 321,632.20, 482,045.10 and 163,923.40 is: 245,679.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,632.20 : 482,045.10 = 163,923.40 : x
  2. Step 2: Convert to fraction form
    321,632.20/482,045.10 = 163,923.40/x
  3. Step 3: Cross multiply
    321,632.20x = 482,045.10 × 163,923.40
  4. Step 4: Simplify right side
    321,632.20x = 79,018,471,745.34
  5. Step 5: Solve for x
    x = 79,018,471,745.34/321,632.20
  6. Step 6: Final answer
    x = 245,679.60

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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.