Home / 419,230.08-578,518.20-228,242.88

Finding the Fourth Proportional to 419,230.08, 578,518.20 and 228,242.88

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Solution

The fourth proportional to 419,230.08, 578,518.20 and 228,242.88 is: 314,964.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,230.08 : 578,518.20 = 228,242.88 : x
  2. Step 2: Convert to fraction form
    419,230.08/578,518.20 = 228,242.88/x
  3. Step 3: Cross multiply
    419,230.08x = 578,518.20 × 228,242.88
  4. Step 4: Simplify right side
    419,230.08x = 132,042,660,100.42
  5. Step 5: Solve for x
    x = 132,042,660,100.42/419,230.08
  6. Step 6: Final answer
    x = 314,964.66

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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.