Home / 520,091.18-780,163.50-146,143.34

Finding the Fourth Proportional to 520,091.18, 780,163.50 and 146,143.34

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Solution

The fourth proportional to 520,091.18, 780,163.50 and 146,143.34 is: 219,222.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,091.18 : 780,163.50 = 146,143.34 : x
  2. Step 2: Convert to fraction form
    520,091.18/780,163.50 = 146,143.34/x
  3. Step 3: Cross multiply
    520,091.18x = 780,163.50 × 146,143.34
  4. Step 4: Simplify right side
    520,091.18x = 114,015,699,636.09
  5. Step 5: Solve for x
    x = 114,015,699,636.09/520,091.18
  6. Step 6: Final answer
    x = 219,222.52

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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.