Home / 218,421.40-327,632.10-70,677.40

Finding the Fourth Proportional to 218,421.40, 327,632.10 and 70,677.40

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Solution

The fourth proportional to 218,421.40, 327,632.10 and 70,677.40 is: 106,016.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,421.40 : 327,632.10 = 70,677.40 : x
  2. Step 2: Convert to fraction form
    218,421.40/327,632.10 = 70,677.40/x
  3. Step 3: Cross multiply
    218,421.40x = 327,632.10 × 70,677.40
  4. Step 4: Simplify right side
    218,421.40x = 23,156,184,984.54
  5. Step 5: Solve for x
    x = 23,156,184,984.54/218,421.40
  6. Step 6: Final answer
    x = 106,016.10

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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.