Home / 386,228.60-579,502.95-208,526.75

Finding the Fourth Proportional to 386,228.60, 579,502.95 and 208,526.75

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Solution

The fourth proportional to 386,228.60, 579,502.95 and 208,526.75 is: 312,876.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,228.60 : 579,502.95 = 208,526.75 : x
  2. Step 2: Convert to fraction form
    386,228.60/579,502.95 = 208,526.75/x
  3. Step 3: Cross multiply
    386,228.60x = 579,502.95 × 208,526.75
  4. Step 4: Simplify right side
    386,228.60x = 120,841,865,736.28
  5. Step 5: Solve for x
    x = 120,841,865,736.28/386,228.60
  6. Step 6: Final answer
    x = 312,876.53

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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.