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Finding the Fourth Proportional to 266,681.85, 368,020.91 and 145,823.21

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Solution

The fourth proportional to 266,681.85, 368,020.91 and 145,823.21 is: 201,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,681.85 : 368,020.91 = 145,823.21 : x
  2. Step 2: Convert to fraction form
    266,681.85/368,020.91 = 145,823.21/x
  3. Step 3: Cross multiply
    266,681.85x = 368,020.91 × 145,823.21
  4. Step 4: Simplify right side
    266,681.85x = 53,665,990,443.32
  5. Step 5: Solve for x
    x = 53,665,990,443.32/266,681.85
  6. Step 6: Final answer
    x = 201,236.01

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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.