Home / 278,385.55-384,173.11-151,061.14

Finding the Fourth Proportional to 278,385.55, 384,173.11 and 151,061.14

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Solution

The fourth proportional to 278,385.55, 384,173.11 and 151,061.14 is: 208,464.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,385.55 : 384,173.11 = 151,061.14 : x
  2. Step 2: Convert to fraction form
    278,385.55/384,173.11 = 151,061.14/x
  3. Step 3: Cross multiply
    278,385.55x = 384,173.11 × 151,061.14
  4. Step 4: Simplify right side
    278,385.55x = 58,033,627,953.95
  5. Step 5: Solve for x
    x = 58,033,627,953.95/278,385.55
  6. Step 6: Final answer
    x = 208,464.94

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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.