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Finding the Fourth Proportional to 335,838.60, 503,640.30 and 99,118.60

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Solution

The fourth proportional to 335,838.60, 503,640.30 and 99,118.60 is: 148,643.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,838.60 : 503,640.30 = 99,118.60 : x
  2. Step 2: Convert to fraction form
    335,838.60/503,640.30 = 99,118.60/x
  3. Step 3: Cross multiply
    335,838.60x = 503,640.30 × 99,118.60
  4. Step 4: Simplify right side
    335,838.60x = 49,920,121,439.58
  5. Step 5: Solve for x
    x = 49,920,121,439.58/335,838.60
  6. Step 6: Final answer
    x = 148,643.19

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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.