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Finding the Fourth Proportional to 266,515.36, 367,798.80 and 145,663.36

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Solution

The fourth proportional to 266,515.36, 367,798.80 and 145,663.36 is: 201,019.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,515.36 : 367,798.80 = 145,663.36 : x
  2. Step 2: Convert to fraction form
    266,515.36/367,798.80 = 145,663.36/x
  3. Step 3: Cross multiply
    266,515.36x = 367,798.80 × 145,663.36
  4. Step 4: Simplify right side
    266,515.36x = 53,574,809,011.97
  5. Step 5: Solve for x
    x = 53,574,809,011.97/266,515.36
  6. Step 6: Final answer
    x = 201,019.59

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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.