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Finding the Fourth Proportional to 286,226, 429,339.04 and 89,234

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Solution

The fourth proportional to 286,226, 429,339.04 and 89,234 is: 133,851.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,226 : 429,339.04 = 89,234 : x
  2. Step 2: Convert to fraction form
    286,226/429,339.04 = 89,234/x
  3. Step 3: Cross multiply
    286,226x = 429,339.04 × 89,234
  4. Step 4: Simplify right side
    286,226x = 38,311,639,895.36
  5. Step 5: Solve for x
    x = 38,311,639,895.36/286,226
  6. Step 6: Final answer
    x = 133,851.01

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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.