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Finding the Fourth Proportional to 286,874.46, 395,900.78 and 159,547.32

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Solution

The fourth proportional to 286,874.46, 395,900.78 and 159,547.32 is: 220,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,874.46 : 395,900.78 = 159,547.32 : x
  2. Step 2: Convert to fraction form
    286,874.46/395,900.78 = 159,547.32/x
  3. Step 3: Cross multiply
    286,874.46x = 395,900.78 × 159,547.32
  4. Step 4: Simplify right side
    286,874.46x = 63,164,908,434.91
  5. Step 5: Solve for x
    x = 63,164,908,434.91/286,874.46
  6. Step 6: Final answer
    x = 220,183.10

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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.