Home / 342,217.72-513,155.28-105,529.66

Finding the Fourth Proportional to 342,217.72, 513,155.28 and 105,529.66

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Solution

The fourth proportional to 342,217.72, 513,155.28 and 105,529.66 is: 158,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,217.72 : 513,155.28 = 105,529.66 : x
  2. Step 2: Convert to fraction form
    342,217.72/513,155.28 = 105,529.66/x
  3. Step 3: Cross multiply
    342,217.72x = 513,155.28 × 105,529.66
  4. Step 4: Simplify right side
    342,217.72x = 54,153,102,225.60
  5. Step 5: Solve for x
    x = 54,153,102,225.60/342,217.72
  6. Step 6: Final answer
    x = 158,241.67

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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.