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Finding the Fourth Proportional to 266,668.39, 368,002.71 and 145,810.21

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Solution

The fourth proportional to 266,668.39, 368,002.71 and 145,810.21 is: 201,218.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,668.39 : 368,002.71 = 145,810.21 : x
  2. Step 2: Convert to fraction form
    266,668.39/368,002.71 = 145,810.21/x
  3. Step 3: Cross multiply
    266,668.39x = 368,002.71 × 145,810.21
  4. Step 4: Simplify right side
    266,668.39x = 53,658,552,425.67
  5. Step 5: Solve for x
    x = 53,658,552,425.67/266,668.39
  6. Step 6: Final answer
    x = 201,218.27

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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.