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Finding the Fourth Proportional to 318,054.38, 438,909.38 and 174,814.38

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Solution

The fourth proportional to 318,054.38, 438,909.38 and 174,814.38 is: 241,240.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,054.38 : 438,909.38 = 174,814.38 : x
  2. Step 2: Convert to fraction form
    318,054.38/438,909.38 = 174,814.38/x
  3. Step 3: Cross multiply
    318,054.38x = 438,909.38 × 174,814.38
  4. Step 4: Simplify right side
    318,054.38x = 76,727,670,266.81
  5. Step 5: Solve for x
    x = 76,727,670,266.81/318,054.38
  6. Step 6: Final answer
    x = 241,240.73

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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.