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Finding the Fourth Proportional to 286,375.74, 429,399 and 118,012.29

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Solution

The fourth proportional to 286,375.74, 429,399 and 118,012.29 is: 176,950.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,375.74 : 429,399 = 118,012.29 : x
  2. Step 2: Convert to fraction form
    286,375.74/429,399 = 118,012.29/x
  3. Step 3: Cross multiply
    286,375.74x = 429,399 × 118,012.29
  4. Step 4: Simplify right side
    286,375.74x = 50,674,359,313.71
  5. Step 5: Solve for x
    x = 50,674,359,313.71/286,375.74
  6. Step 6: Final answer
    x = 176,950.60

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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.