Home / 280,064.07-386,421.98-159,195.84

Finding the Fourth Proportional to 280,064.07, 386,421.98 and 159,195.84

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Solution

The fourth proportional to 280,064.07, 386,421.98 and 159,195.84 is: 219,652.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,064.07 : 386,421.98 = 159,195.84 : x
  2. Step 2: Convert to fraction form
    280,064.07/386,421.98 = 159,195.84/x
  3. Step 3: Cross multiply
    280,064.07x = 386,421.98 × 159,195.84
  4. Step 4: Simplify right side
    280,064.07x = 61,516,770,904.58
  5. Step 5: Solve for x
    x = 61,516,770,904.58/280,064.07
  6. Step 6: Final answer
    x = 219,652.49

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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.