Home / 379,113.42-523,176.39-218,000.10

Finding the Fourth Proportional to 379,113.42, 523,176.39 and 218,000.10

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Solution

The fourth proportional to 379,113.42, 523,176.39 and 218,000.10 is: 300,840.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,113.42 : 523,176.39 = 218,000.10 : x
  2. Step 2: Convert to fraction form
    379,113.42/523,176.39 = 218,000.10/x
  3. Step 3: Cross multiply
    379,113.42x = 523,176.39 × 218,000.10
  4. Step 4: Simplify right side
    379,113.42x = 114,052,505,337.64
  5. Step 5: Solve for x
    x = 114,052,505,337.64/379,113.42
  6. Step 6: Final answer
    x = 300,840.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.