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Finding the Fourth Proportional to 313,434.60, 469,830.20 and 123,818.20

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Solution

The fourth proportional to 313,434.60, 469,830.20 and 123,818.20 is: 185,600.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,434.60 : 469,830.20 = 123,818.20 : x
  2. Step 2: Convert to fraction form
    313,434.60/469,830.20 = 123,818.20/x
  3. Step 3: Cross multiply
    313,434.60x = 469,830.20 × 123,818.20
  4. Step 4: Simplify right side
    313,434.60x = 58,173,529,669.64
  5. Step 5: Solve for x
    x = 58,173,529,669.64/313,434.60
  6. Step 6: Final answer
    x = 185,600.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.