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Finding the Fourth Proportional to 286,700.64, 429,511.48 and 168,019.44

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Solution

The fourth proportional to 286,700.64, 429,511.48 and 168,019.44 is: 251,713.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,700.64 : 429,511.48 = 168,019.44 : x
  2. Step 2: Convert to fraction form
    286,700.64/429,511.48 = 168,019.44/x
  3. Step 3: Cross multiply
    286,700.64x = 429,511.48 × 168,019.44
  4. Step 4: Simplify right side
    286,700.64x = 72,166,278,343.17
  5. Step 5: Solve for x
    x = 72,166,278,343.17/286,700.64
  6. Step 6: Final answer
    x = 251,713.00

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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.