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Finding the Fourth Proportional to 286,376.64, 395,192.88 and 159,051.12

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Solution

The fourth proportional to 286,376.64, 395,192.88 and 159,051.12 is: 219,486.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,376.64 : 395,192.88 = 159,051.12 : x
  2. Step 2: Convert to fraction form
    286,376.64/395,192.88 = 159,051.12/x
  3. Step 3: Cross multiply
    286,376.64x = 395,192.88 × 159,051.12
  4. Step 4: Simplify right side
    286,376.64x = 62,855,870,180.03
  5. Step 5: Solve for x
    x = 62,855,870,180.03/286,376.64
  6. Step 6: Final answer
    x = 219,486.72

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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.