Home / 319,192.02-440,516.03-238,479.44

Finding the Fourth Proportional to 319,192.02, 440,516.03 and 238,479.44

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Solution

The fourth proportional to 319,192.02, 440,516.03 and 238,479.44 is: 329,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,192.02 : 440,516.03 = 238,479.44 : x
  2. Step 2: Convert to fraction form
    319,192.02/440,516.03 = 238,479.44/x
  3. Step 3: Cross multiply
    319,192.02x = 440,516.03 × 238,479.44
  4. Step 4: Simplify right side
    319,192.02x = 105,054,012,750.45
  5. Step 5: Solve for x
    x = 105,054,012,750.45/319,192.02
  6. Step 6: Final answer
    x = 329,124.81

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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.