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Finding the Fourth Proportional to 319,521.42, 440,924.13 and 174,318.59

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Solution

The fourth proportional to 319,521.42, 440,924.13 and 174,318.59 is: 240,551.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,521.42 : 440,924.13 = 174,318.59 : x
  2. Step 2: Convert to fraction form
    319,521.42/440,924.13 = 174,318.59/x
  3. Step 3: Cross multiply
    319,521.42x = 440,924.13 × 174,318.59
  4. Step 4: Simplify right side
    319,521.42x = 76,861,272,638.58
  5. Step 5: Solve for x
    x = 76,861,272,638.58/319,521.42
  6. Step 6: Final answer
    x = 240,551.24

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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.