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Finding the Fourth Proportional to 293,800.19, 402,803.79 and 288,485.78

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Solution

The fourth proportional to 293,800.19, 402,803.79 and 288,485.78 is: 395,517.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,800.19 : 402,803.79 = 288,485.78 : x
  2. Step 2: Convert to fraction form
    293,800.19/402,803.79 = 288,485.78/x
  3. Step 3: Cross multiply
    293,800.19x = 402,803.79 × 288,485.78
  4. Step 4: Simplify right side
    293,800.19x = 116,203,164,102.68
  5. Step 5: Solve for x
    x = 116,203,164,102.68/293,800.19
  6. Step 6: Final answer
    x = 395,517.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.