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Finding the Fourth Proportional to 402,087.76, 554,894.04 and 232,321.84

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Solution

The fourth proportional to 402,087.76, 554,894.04 and 232,321.84 is: 320,611.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,087.76 : 554,894.04 = 232,321.84 : x
  2. Step 2: Convert to fraction form
    402,087.76/554,894.04 = 232,321.84/x
  3. Step 3: Cross multiply
    402,087.76x = 554,894.04 × 232,321.84
  4. Step 4: Simplify right side
    402,087.76x = 128,914,004,377.83
  5. Step 5: Solve for x
    x = 128,914,004,377.83/402,087.76
  6. Step 6: Final answer
    x = 320,611.61

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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.