Home / 286,312.78-428,613.81-173,651.50

Finding the Fourth Proportional to 286,312.78, 428,613.81 and 173,651.50

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Solution

The fourth proportional to 286,312.78, 428,613.81 and 173,651.50 is: 259,958.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,312.78 : 428,613.81 = 173,651.50 : x
  2. Step 2: Convert to fraction form
    286,312.78/428,613.81 = 173,651.50/x
  3. Step 3: Cross multiply
    286,312.78x = 428,613.81 × 173,651.50
  4. Step 4: Simplify right side
    286,312.78x = 74,429,431,027.22
  5. Step 5: Solve for x
    x = 74,429,431,027.22/286,312.78
  6. Step 6: Final answer
    x = 259,958.47

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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.