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Finding the Fourth Proportional to 315,337.21, 435,175.50 and 179,367.66

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Solution

The fourth proportional to 315,337.21, 435,175.50 and 179,367.66 is: 247,533.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,337.21 : 435,175.50 = 179,367.66 : x
  2. Step 2: Convert to fraction form
    315,337.21/435,175.50 = 179,367.66/x
  3. Step 3: Cross multiply
    315,337.21x = 435,175.50 × 179,367.66
  4. Step 4: Simplify right side
    315,337.21x = 78,056,410,166.74
  5. Step 5: Solve for x
    x = 78,056,410,166.74/315,337.21
  6. Step 6: Final answer
    x = 247,533.14

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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.