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Finding the Fourth Proportional to 319,032.84, 440,261.75 and 181,210.80

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Solution

The fourth proportional to 319,032.84, 440,261.75 and 181,210.80 is: 250,068.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,032.84 : 440,261.75 = 181,210.80 : x
  2. Step 2: Convert to fraction form
    319,032.84/440,261.75 = 181,210.80/x
  3. Step 3: Cross multiply
    319,032.84x = 440,261.75 × 181,210.80
  4. Step 4: Simplify right side
    319,032.84x = 79,780,183,020.85
  5. Step 5: Solve for x
    x = 79,780,183,020.85/319,032.84
  6. Step 6: Final answer
    x = 250,068.87

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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.