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Finding the Fourth Proportional to 266,498.88, 367,762.08 and 145,640.40

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Solution

The fourth proportional to 266,498.88, 367,762.08 and 145,640.40 is: 200,980.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,498.88 : 367,762.08 = 145,640.40 : x
  2. Step 2: Convert to fraction form
    266,498.88/367,762.08 = 145,640.40/x
  3. Step 3: Cross multiply
    266,498.88x = 367,762.08 × 145,640.40
  4. Step 4: Simplify right side
    266,498.88x = 53,561,016,436.03
  5. Step 5: Solve for x
    x = 53,561,016,436.03/266,498.88
  6. Step 6: Final answer
    x = 200,980.27

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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.