Home / 258,628.87-356,854.34-151,178.12

Finding the Fourth Proportional to 258,628.87, 356,854.34 and 151,178.12

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Solution

The fourth proportional to 258,628.87, 356,854.34 and 151,178.12 is: 208,594.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,628.87 : 356,854.34 = 151,178.12 : x
  2. Step 2: Convert to fraction form
    258,628.87/356,854.34 = 151,178.12/x
  3. Step 3: Cross multiply
    258,628.87x = 356,854.34 × 151,178.12
  4. Step 4: Simplify right side
    258,628.87x = 53,948,566,828.71
  5. Step 5: Solve for x
    x = 53,948,566,828.71/258,628.87
  6. Step 6: Final answer
    x = 208,594.53

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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.