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Finding the Fourth Proportional to 402,236.66, 555,059.31 and 220,956.23

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Solution

The fourth proportional to 402,236.66, 555,059.31 and 220,956.23 is: 304,904.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,236.66 : 555,059.31 = 220,956.23 : x
  2. Step 2: Convert to fraction form
    402,236.66/555,059.31 = 220,956.23/x
  3. Step 3: Cross multiply
    402,236.66x = 555,059.31 × 220,956.23
  4. Step 4: Simplify right side
    402,236.66x = 122,643,812,564.00
  5. Step 5: Solve for x
    x = 122,643,812,564.00/402,236.66
  6. Step 6: Final answer
    x = 304,904.61

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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.