Home / 266,667.39-368,001.33-145,809.21

Finding the Fourth Proportional to 266,667.39, 368,001.33 and 145,809.21

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Solution

The fourth proportional to 266,667.39, 368,001.33 and 145,809.21 is: 201,216.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,667.39 : 368,001.33 = 145,809.21 : x
  2. Step 2: Convert to fraction form
    266,667.39/368,001.33 = 145,809.21/x
  3. Step 3: Cross multiply
    266,667.39x = 368,001.33 × 145,809.21
  4. Step 4: Simplify right side
    266,667.39x = 53,657,984,039.47
  5. Step 5: Solve for x
    x = 53,657,984,039.47/266,667.39
  6. Step 6: Final answer
    x = 201,216.89

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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.