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Finding the Fourth Proportional to 266,421.61, 367,667.11 and 145,570.40

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Solution

The fourth proportional to 266,421.61, 367,667.11 and 145,570.40 is: 200,890.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,421.61 : 367,667.11 = 145,570.40 : x
  2. Step 2: Convert to fraction form
    266,421.61/367,667.11 = 145,570.40/x
  3. Step 3: Cross multiply
    266,421.61x = 367,667.11 × 145,570.40
  4. Step 4: Simplify right side
    266,421.61x = 53,521,448,269.54
  5. Step 5: Solve for x
    x = 53,521,448,269.54/266,421.61
  6. Step 6: Final answer
    x = 200,890.04

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.