Home / 356,020.72-533,919.50-103,318.64

Finding the Fourth Proportional to 356,020.72, 533,919.50 and 103,318.64

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Solution

The fourth proportional to 356,020.72, 533,919.50 and 103,318.64 is: 154,945.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,020.72 : 533,919.50 = 103,318.64 : x
  2. Step 2: Convert to fraction form
    356,020.72/533,919.50 = 103,318.64/x
  3. Step 3: Cross multiply
    356,020.72x = 533,919.50 × 103,318.64
  4. Step 4: Simplify right side
    356,020.72x = 55,163,835,812.93
  5. Step 5: Solve for x
    x = 55,163,835,812.93/356,020.72
  6. Step 6: Final answer
    x = 154,945.58

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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.