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Finding the Fourth Proportional to 376,880.80, 565,256.40 and 140,101.60

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Solution

The fourth proportional to 376,880.80, 565,256.40 and 140,101.60 is: 210,128.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,880.80 : 565,256.40 = 140,101.60 : x
  2. Step 2: Convert to fraction form
    376,880.80/565,256.40 = 140,101.60/x
  3. Step 3: Cross multiply
    376,880.80x = 565,256.40 × 140,101.60
  4. Step 4: Simplify right side
    376,880.80x = 79,193,326,050.24
  5. Step 5: Solve for x
    x = 79,193,326,050.24/376,880.80
  6. Step 6: Final answer
    x = 210,128.31

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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.