Home / 287,020.58-430,796.89-144,965.61

Finding the Fourth Proportional to 287,020.58, 430,796.89 and 144,965.61

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Solution

The fourth proportional to 287,020.58, 430,796.89 and 144,965.61 is: 217,582.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,020.58 : 430,796.89 = 144,965.61 : x
  2. Step 2: Convert to fraction form
    287,020.58/430,796.89 = 144,965.61/x
  3. Step 3: Cross multiply
    287,020.58x = 430,796.89 × 144,965.61
  4. Step 4: Simplify right side
    287,020.58x = 62,450,733,944.95
  5. Step 5: Solve for x
    x = 62,450,733,944.95/287,020.58
  6. Step 6: Final answer
    x = 217,582.77

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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.