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Finding the Fourth Proportional to 291,729.92, 402,662.20 and 190,008.88

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Solution

The fourth proportional to 291,729.92, 402,662.20 and 190,008.88 is: 262,261.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,729.92 : 402,662.20 = 190,008.88 : x
  2. Step 2: Convert to fraction form
    291,729.92/402,662.20 = 190,008.88/x
  3. Step 3: Cross multiply
    291,729.92x = 402,662.20 × 190,008.88
  4. Step 4: Simplify right side
    291,729.92x = 76,509,393,640.34
  5. Step 5: Solve for x
    x = 76,509,393,640.34/291,729.92
  6. Step 6: Final answer
    x = 262,261.04

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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.