Home / 316,370.10-436,523.23-187,349.10

Finding the Fourth Proportional to 316,370.10, 436,523.23 and 187,349.10

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Solution

The fourth proportional to 316,370.10, 436,523.23 and 187,349.10 is: 258,501.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,370.10 : 436,523.23 = 187,349.10 : x
  2. Step 2: Convert to fraction form
    316,370.10/436,523.23 = 187,349.10/x
  3. Step 3: Cross multiply
    316,370.10x = 436,523.23 × 187,349.10
  4. Step 4: Simplify right side
    316,370.10x = 81,782,234,268.42
  5. Step 5: Solve for x
    x = 81,782,234,268.42/316,370.10
  6. Step 6: Final answer
    x = 258,501.78

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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.