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Finding the Fourth Proportional to 515,066.40, 772,761.60 and 248,835.60

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Solution

The fourth proportional to 515,066.40, 772,761.60 and 248,835.60 is: 373,331.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,066.40 : 772,761.60 = 248,835.60 : x
  2. Step 2: Convert to fraction form
    515,066.40/772,761.60 = 248,835.60/x
  3. Step 3: Cross multiply
    515,066.40x = 772,761.60 × 248,835.60
  4. Step 4: Simplify right side
    515,066.40x = 192,290,596,392.96
  5. Step 5: Solve for x
    x = 192,290,596,392.96/515,066.40
  6. Step 6: Final answer
    x = 373,331.66

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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.