Home / 319,415.07-479,188.73-129,875.46

Finding the Fourth Proportional to 319,415.07, 479,188.73 and 129,875.46

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Solution

The fourth proportional to 319,415.07, 479,188.73 and 129,875.46 is: 194,840.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,415.07 : 479,188.73 = 129,875.46 : x
  2. Step 2: Convert to fraction form
    319,415.07/479,188.73 = 129,875.46/x
  3. Step 3: Cross multiply
    319,415.07x = 479,188.73 × 129,875.46
  4. Step 4: Simplify right side
    319,415.07x = 62,234,856,735.57
  5. Step 5: Solve for x
    x = 62,234,856,735.57/319,415.07
  6. Step 6: Final answer
    x = 194,840.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.