Home / 261,397.48-391,464.64-148,736.36

Finding the Fourth Proportional to 261,397.48, 391,464.64 and 148,736.36

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Solution

The fourth proportional to 261,397.48, 391,464.64 and 148,736.36 is: 222,745.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,397.48 : 391,464.64 = 148,736.36 : x
  2. Step 2: Convert to fraction form
    261,397.48/391,464.64 = 148,736.36/x
  3. Step 3: Cross multiply
    261,397.48x = 391,464.64 × 148,736.36
  4. Step 4: Simplify right side
    261,397.48x = 58,225,025,622.31
  5. Step 5: Solve for x
    x = 58,225,025,622.31/261,397.48
  6. Step 6: Final answer
    x = 222,745.17

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1.5x scale

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.