Home / 278,430.76-384,232.44-151,103.62

Finding the Fourth Proportional to 278,430.76, 384,232.44 and 151,103.62

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Solution

The fourth proportional to 278,430.76, 384,232.44 and 151,103.62 is: 208,521.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,430.76 : 384,232.44 = 151,103.62 : x
  2. Step 2: Convert to fraction form
    278,430.76/384,232.44 = 151,103.62/x
  3. Step 3: Cross multiply
    278,430.76x = 384,232.44 × 151,103.62
  4. Step 4: Simplify right side
    278,430.76x = 58,058,912,605.43
  5. Step 5: Solve for x
    x = 58,058,912,605.43/278,430.76
  6. Step 6: Final answer
    x = 208,521.91

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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.