Home / 278,817.91-384,772.22-151,495.63

Finding the Fourth Proportional to 278,817.91, 384,772.22 and 151,495.63

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Solution

The fourth proportional to 278,817.91, 384,772.22 and 151,495.63 is: 209,065.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,817.91 : 384,772.22 = 151,495.63 : x
  2. Step 2: Convert to fraction form
    278,817.91/384,772.22 = 151,495.63/x
  3. Step 3: Cross multiply
    278,817.91x = 384,772.22 × 151,495.63
  4. Step 4: Simplify right side
    278,817.91x = 58,291,309,117.92
  5. Step 5: Solve for x
    x = 58,291,309,117.92/278,817.91
  6. Step 6: Final answer
    x = 209,065.87

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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.