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Finding the Fourth Proportional to 156,434, 234,654.84 and 56,603.60

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Solution

The fourth proportional to 156,434, 234,654.84 and 56,603.60 is: 84,906.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,434 : 234,654.84 = 56,603.60 : x
  2. Step 2: Convert to fraction form
    156,434/234,654.84 = 56,603.60/x
  3. Step 3: Cross multiply
    156,434x = 234,654.84 × 56,603.60
  4. Step 4: Simplify right side
    156,434x = 13,282,308,701.42
  5. Step 5: Solve for x
    x = 13,282,308,701.42/156,434
  6. Step 6: Final answer
    x = 84,906.79

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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.