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Finding the Fourth Proportional to 286,874.28, 395,880.88 and 159,547.14

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Solution

The fourth proportional to 286,874.28, 395,880.88 and 159,547.14 is: 220,171.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,874.28 : 395,880.88 = 159,547.14 : x
  2. Step 2: Convert to fraction form
    286,874.28/395,880.88 = 159,547.14/x
  3. Step 3: Cross multiply
    286,874.28x = 395,880.88 × 159,547.14
  4. Step 4: Simplify right side
    286,874.28x = 63,161,662,184.68
  5. Step 5: Solve for x
    x = 63,161,662,184.68/286,874.28
  6. Step 6: Final answer
    x = 220,171.92

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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.