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Finding the Fourth Proportional to 286,683.84, 395,615.88 and 159,356.16

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Solution

The fourth proportional to 286,683.84, 395,615.88 and 159,356.16 is: 219,907.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,683.84 : 395,615.88 = 159,356.16 : x
  2. Step 2: Convert to fraction form
    286,683.84/395,615.88 = 159,356.16/x
  3. Step 3: Cross multiply
    286,683.84x = 395,615.88 × 159,356.16
  4. Step 4: Simplify right side
    286,683.84x = 63,043,827,471.82
  5. Step 5: Solve for x
    x = 63,043,827,471.82/286,683.84
  6. Step 6: Final answer
    x = 219,907.15

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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.