Home / 319,355.81-440,197.03-233,178.15

Finding the Fourth Proportional to 319,355.81, 440,197.03 and 233,178.15

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Solution

The fourth proportional to 319,355.81, 440,197.03 and 233,178.15 is: 321,410.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,355.81 : 440,197.03 = 233,178.15 : x
  2. Step 2: Convert to fraction form
    319,355.81/440,197.03 = 233,178.15/x
  3. Step 3: Cross multiply
    319,355.81x = 440,197.03 × 233,178.15
  4. Step 4: Simplify right side
    319,355.81x = 102,644,329,090.90
  5. Step 5: Solve for x
    x = 102,644,329,090.90/319,355.81
  6. Step 6: Final answer
    x = 321,410.56

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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.