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Finding the Fourth Proportional to 319,225.67, 440,534.81 and 175,990.84

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Solution

The fourth proportional to 319,225.67, 440,534.81 and 175,990.84 is: 242,869.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,225.67 : 440,534.81 = 175,990.84 : x
  2. Step 2: Convert to fraction form
    319,225.67/440,534.81 = 175,990.84/x
  3. Step 3: Cross multiply
    319,225.67x = 440,534.81 × 175,990.84
  4. Step 4: Simplify right side
    319,225.67x = 77,530,090,599.78
  5. Step 5: Solve for x
    x = 77,530,090,599.78/319,225.67
  6. Step 6: Final answer
    x = 242,869.23

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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.