Home / 278,816.76-384,772.86-151,500.60

Finding the Fourth Proportional to 278,816.76, 384,772.86 and 151,500.60

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Solution

The fourth proportional to 278,816.76, 384,772.86 and 151,500.60 is: 209,073.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,816.76 : 384,772.86 = 151,500.60 : x
  2. Step 2: Convert to fraction form
    278,816.76/384,772.86 = 151,500.60/x
  3. Step 3: Cross multiply
    278,816.76x = 384,772.86 × 151,500.60
  4. Step 4: Simplify right side
    278,816.76x = 58,293,319,153.72
  5. Step 5: Solve for x
    x = 58,293,319,153.72/278,816.76
  6. Step 6: Final answer
    x = 209,073.94

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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.