Home / 286,723.06-395,655.41-159,390.90

Finding the Fourth Proportional to 286,723.06, 395,655.41 and 159,390.90

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Solution

The fourth proportional to 286,723.06, 395,655.41 and 159,390.90 is: 219,946.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,723.06 : 395,655.41 = 159,390.90 : x
  2. Step 2: Convert to fraction form
    286,723.06/395,655.41 = 159,390.90/x
  3. Step 3: Cross multiply
    286,723.06x = 395,655.41 × 159,390.90
  4. Step 4: Simplify right side
    286,723.06x = 63,063,871,889.77
  5. Step 5: Solve for x
    x = 63,063,871,889.77/286,723.06
  6. Step 6: Final answer
    x = 219,946.98

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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.