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Finding the Fourth Proportional to 370,857.72, 556,146.90 and 134,141.88

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Solution

The fourth proportional to 370,857.72, 556,146.90 and 134,141.88 is: 201,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,857.72 : 556,146.90 = 134,141.88 : x
  2. Step 2: Convert to fraction form
    370,857.72/556,146.90 = 134,141.88/x
  3. Step 3: Cross multiply
    370,857.72x = 556,146.90 × 134,141.88
  4. Step 4: Simplify right side
    370,857.72x = 74,602,590,722.17
  5. Step 5: Solve for x
    x = 74,602,590,722.17/370,857.72
  6. Step 6: Final answer
    x = 201,162.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.