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Finding the Fourth Proportional to 253,304.04, 349,520.22 and 145,878.60

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Solution

The fourth proportional to 253,304.04, 349,520.22 and 145,878.60 is: 201,289.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,304.04 : 349,520.22 = 145,878.60 : x
  2. Step 2: Convert to fraction form
    253,304.04/349,520.22 = 145,878.60/x
  3. Step 3: Cross multiply
    253,304.04x = 349,520.22 × 145,878.60
  4. Step 4: Simplify right side
    253,304.04x = 50,987,520,365.29
  5. Step 5: Solve for x
    x = 50,987,520,365.29/253,304.04
  6. Step 6: Final answer
    x = 201,289.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.