Home / 278,502.55-384,333.19-151,178.15

Finding the Fourth Proportional to 278,502.55, 384,333.19 and 151,178.15

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Solution

The fourth proportional to 278,502.55, 384,333.19 and 151,178.15 is: 208,625.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,502.55 : 384,333.19 = 151,178.15 : x
  2. Step 2: Convert to fraction form
    278,502.55/384,333.19 = 151,178.15/x
  3. Step 3: Cross multiply
    278,502.55x = 384,333.19 × 151,178.15
  4. Step 4: Simplify right side
    278,502.55x = 58,102,781,230.69
  5. Step 5: Solve for x
    x = 58,102,781,230.69/278,502.55
  6. Step 6: Final answer
    x = 208,625.67

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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.