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Finding the Fourth Proportional to 325,807.50, 488,557.88 and 126,221.34

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Solution

The fourth proportional to 325,807.50, 488,557.88 and 126,221.34 is: 189,272.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,807.50 : 488,557.88 = 126,221.34 : x
  2. Step 2: Convert to fraction form
    325,807.50/488,557.88 = 126,221.34/x
  3. Step 3: Cross multiply
    325,807.50x = 488,557.88 × 126,221.34
  4. Step 4: Simplify right side
    325,807.50x = 61,666,430,281.16
  5. Step 5: Solve for x
    x = 61,666,430,281.16/325,807.50
  6. Step 6: Final answer
    x = 189,272.59

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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.