Home / 392,904.77-542,273.81-231,799.41

Finding the Fourth Proportional to 392,904.77, 542,273.81 and 231,799.41

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Solution

The fourth proportional to 392,904.77, 542,273.81 and 231,799.41 is: 319,921.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,904.77 : 542,273.81 = 231,799.41 : x
  2. Step 2: Convert to fraction form
    392,904.77/542,273.81 = 231,799.41/x
  3. Step 3: Cross multiply
    392,904.77x = 542,273.81 × 231,799.41
  4. Step 4: Simplify right side
    392,904.77x = 125,698,748,057.46
  5. Step 5: Solve for x
    x = 125,698,748,057.46/392,904.77
  6. Step 6: Final answer
    x = 319,921.67

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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.