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Finding the Fourth Proportional to 286,632.74, 395,550.32 and 159,305.60

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Solution

The fourth proportional to 286,632.74, 395,550.32 and 159,305.60 is: 219,840.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,632.74 : 395,550.32 = 159,305.60 : x
  2. Step 2: Convert to fraction form
    286,632.74/395,550.32 = 159,305.60/x
  3. Step 3: Cross multiply
    286,632.74x = 395,550.32 × 159,305.60
  4. Step 4: Simplify right side
    286,632.74x = 63,013,381,057.79
  5. Step 5: Solve for x
    x = 63,013,381,057.79/286,632.74
  6. Step 6: Final answer
    x = 219,840.14

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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.