Home / 340,385.49-469,725.68-187,420.33

Finding the Fourth Proportional to 340,385.49, 469,725.68 and 187,420.33

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Solution

The fourth proportional to 340,385.49, 469,725.68 and 187,420.33 is: 258,636.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,385.49 : 469,725.68 = 187,420.33 : x
  2. Step 2: Convert to fraction form
    340,385.49/469,725.68 = 187,420.33/x
  3. Step 3: Cross multiply
    340,385.49x = 469,725.68 × 187,420.33
  4. Step 4: Simplify right side
    340,385.49x = 88,036,143,010.78
  5. Step 5: Solve for x
    x = 88,036,143,010.78/340,385.49
  6. Step 6: Final answer
    x = 258,636.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.