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Finding the Fourth Proportional to 280,045.73, 386,486.07 and 159,224.93

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Solution

The fourth proportional to 280,045.73, 386,486.07 and 159,224.93 is: 219,743.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,045.73 : 386,486.07 = 159,224.93 : x
  2. Step 2: Convert to fraction form
    280,045.73/386,486.07 = 159,224.93/x
  3. Step 3: Cross multiply
    280,045.73x = 386,486.07 × 159,224.93
  4. Step 4: Simplify right side
    280,045.73x = 61,538,217,441.73
  5. Step 5: Solve for x
    x = 61,538,217,441.73/280,045.73
  6. Step 6: Final answer
    x = 219,743.46

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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.