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Finding the Fourth Proportional to 156,458.88, 234,688.32 and 45,650.88

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Solution

The fourth proportional to 156,458.88, 234,688.32 and 45,650.88 is: 68,476.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,458.88 : 234,688.32 = 45,650.88 : x
  2. Step 2: Convert to fraction form
    156,458.88/234,688.32 = 45,650.88/x
  3. Step 3: Cross multiply
    156,458.88x = 234,688.32 × 45,650.88
  4. Step 4: Simplify right side
    156,458.88x = 10,713,728,333.72
  5. Step 5: Solve for x
    x = 10,713,728,333.72/156,458.88
  6. Step 6: Final answer
    x = 68,476.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.