Home / 340,235.20-469,520.85-187,270.12

Finding the Fourth Proportional to 340,235.20, 469,520.85 and 187,270.12

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Solution

The fourth proportional to 340,235.20, 469,520.85 and 187,270.12 is: 258,430.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,235.20 : 469,520.85 = 187,270.12 : x
  2. Step 2: Convert to fraction form
    340,235.20/469,520.85 = 187,270.12/x
  3. Step 3: Cross multiply
    340,235.20x = 469,520.85 × 187,270.12
  4. Step 4: Simplify right side
    340,235.20x = 87,927,225,922.00
  5. Step 5: Solve for x
    x = 87,927,225,922.00/340,235.20
  6. Step 6: Final answer
    x = 258,430.71

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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.