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Finding the Fourth Proportional to 156,265.68, 234,405 and 45,457.68

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Solution

The fourth proportional to 156,265.68, 234,405 and 45,457.68 is: 68,188.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,265.68 : 234,405 = 45,457.68 : x
  2. Step 2: Convert to fraction form
    156,265.68/234,405 = 45,457.68/x
  3. Step 3: Cross multiply
    156,265.68x = 234,405 × 45,457.68
  4. Step 4: Simplify right side
    156,265.68x = 10,655,507,480.40
  5. Step 5: Solve for x
    x = 10,655,507,480.40/156,265.68
  6. Step 6: Final answer
    x = 68,188.41

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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.