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Finding the Fourth Proportional to 577,365.40, 866,048.10 and 156,640.60

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Solution

The fourth proportional to 577,365.40, 866,048.10 and 156,640.60 is: 234,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,365.40 : 866,048.10 = 156,640.60 : x
  2. Step 2: Convert to fraction form
    577,365.40/866,048.10 = 156,640.60/x
  3. Step 3: Cross multiply
    577,365.40x = 866,048.10 × 156,640.60
  4. Step 4: Simplify right side
    577,365.40x = 135,658,294,012.86
  5. Step 5: Solve for x
    x = 135,658,294,012.86/577,365.40
  6. Step 6: Final answer
    x = 234,960.90

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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.