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Finding the Fourth Proportional to 291,627.44, 402,440.64 and 164,300.30

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Solution

The fourth proportional to 291,627.44, 402,440.64 and 164,300.30 is: 226,731.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,627.44 : 402,440.64 = 164,300.30 : x
  2. Step 2: Convert to fraction form
    291,627.44/402,440.64 = 164,300.30/x
  3. Step 3: Cross multiply
    291,627.44x = 402,440.64 × 164,300.30
  4. Step 4: Simplify right side
    291,627.44x = 66,121,117,884.19
  5. Step 5: Solve for x
    x = 66,121,117,884.19/291,627.44
  6. Step 6: Final answer
    x = 226,731.47

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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.