Home / 280,550.58-387,162.27-159,699.66

Finding the Fourth Proportional to 280,550.58, 387,162.27 and 159,699.66

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Solution

The fourth proportional to 280,550.58, 387,162.27 and 159,699.66 is: 220,386.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,550.58 : 387,162.27 = 159,699.66 : x
  2. Step 2: Convert to fraction form
    280,550.58/387,162.27 = 159,699.66/x
  3. Step 3: Cross multiply
    280,550.58x = 387,162.27 × 159,699.66
  4. Step 4: Simplify right side
    280,550.58x = 61,829,682,883.83
  5. Step 5: Solve for x
    x = 61,829,682,883.83/280,550.58
  6. Step 6: Final answer
    x = 220,386.94

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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.