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Finding the Fourth Proportional to 275,681.64, 413,212.50 and 140,365.88

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Solution

The fourth proportional to 275,681.64, 413,212.50 and 140,365.88 is: 210,391.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,681.64 : 413,212.50 = 140,365.88 : x
  2. Step 2: Convert to fraction form
    275,681.64/413,212.50 = 140,365.88/x
  3. Step 3: Cross multiply
    275,681.64x = 413,212.50 × 140,365.88
  4. Step 4: Simplify right side
    275,681.64x = 58,000,936,189.50
  5. Step 5: Solve for x
    x = 58,000,936,189.50/275,681.64
  6. Step 6: Final answer
    x = 210,391.00

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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.