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Finding the Fourth Proportional to 266,317.82, 367,518.59 and 145,459.40

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Solution

The fourth proportional to 266,317.82, 367,518.59 and 145,459.40 is: 200,733.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,317.82 : 367,518.59 = 145,459.40 : x
  2. Step 2: Convert to fraction form
    266,317.82/367,518.59 = 145,459.40/x
  3. Step 3: Cross multiply
    266,317.82x = 367,518.59 × 145,459.40
  4. Step 4: Simplify right side
    266,317.82x = 53,459,032,116.30
  5. Step 5: Solve for x
    x = 53,459,032,116.30/266,317.82
  6. Step 6: Final answer
    x = 200,733.96

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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.