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Finding the Fourth Proportional to 306,221.72, 459,425.89 and 156,567.06

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Solution

The fourth proportional to 306,221.72, 459,425.89 and 156,567.06 is: 234,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,221.72 : 459,425.89 = 156,567.06 : x
  2. Step 2: Convert to fraction form
    306,221.72/459,425.89 = 156,567.06/x
  3. Step 3: Cross multiply
    306,221.72x = 459,425.89 × 156,567.06
  4. Step 4: Simplify right side
    306,221.72x = 71,930,961,080.89
  5. Step 5: Solve for x
    x = 71,930,961,080.89/306,221.72
  6. Step 6: Final answer
    x = 234,898.30

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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.