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Finding the Fourth Proportional to 286,539.84, 395,417.15 and 159,212.16

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Solution

The fourth proportional to 286,539.84, 395,417.15 and 159,212.16 is: 219,708.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,539.84 : 395,417.15 = 159,212.16 : x
  2. Step 2: Convert to fraction form
    286,539.84/395,417.15 = 159,212.16/x
  3. Step 3: Cross multiply
    286,539.84x = 395,417.15 × 159,212.16
  4. Step 4: Simplify right side
    286,539.84x = 62,955,218,552.54
  5. Step 5: Solve for x
    x = 62,955,218,552.54/286,539.84
  6. Step 6: Final answer
    x = 219,708.43

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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.