Home / 278,715.24-384,627.15-151,393.50

Finding the Fourth Proportional to 278,715.24, 384,627.15 and 151,393.50

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Solution

The fourth proportional to 278,715.24, 384,627.15 and 151,393.50 is: 208,923.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,715.24 : 384,627.15 = 151,393.50 : x
  2. Step 2: Convert to fraction form
    278,715.24/384,627.15 = 151,393.50/x
  3. Step 3: Cross multiply
    278,715.24x = 384,627.15 × 151,393.50
  4. Step 4: Simplify right side
    278,715.24x = 58,230,050,433.53
  5. Step 5: Solve for x
    x = 58,230,050,433.53/278,715.24
  6. Step 6: Final answer
    x = 208,923.09

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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.