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Finding the Fourth Proportional to 280,571.83, 387,050.40 and 165,794.95

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Solution

The fourth proportional to 280,571.83, 387,050.40 and 165,794.95 is: 228,715.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,571.83 : 387,050.40 = 165,794.95 : x
  2. Step 2: Convert to fraction form
    280,571.83/387,050.40 = 165,794.95/x
  3. Step 3: Cross multiply
    280,571.83x = 387,050.40 × 165,794.95
  4. Step 4: Simplify right side
    280,571.83x = 64,171,001,715.48
  5. Step 5: Solve for x
    x = 64,171,001,715.48/280,571.83
  6. Step 6: Final answer
    x = 228,715.06

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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.