Home / 278,503.79-384,332.58-151,179.21

Finding the Fourth Proportional to 278,503.79, 384,332.58 and 151,179.21

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Solution

The fourth proportional to 278,503.79, 384,332.58 and 151,179.21 is: 208,625.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,503.79 : 384,332.58 = 151,179.21 : x
  2. Step 2: Convert to fraction form
    278,503.79/384,332.58 = 151,179.21/x
  3. Step 3: Cross multiply
    278,503.79x = 384,332.58 × 151,179.21
  4. Step 4: Simplify right side
    278,503.79x = 58,103,095,821.66
  5. Step 5: Solve for x
    x = 58,103,095,821.66/278,503.79
  6. Step 6: Final answer
    x = 208,625.87

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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.