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Finding the Fourth Proportional to 372,315.84, 513,779.66 and 206,733.49

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Solution

The fourth proportional to 372,315.84, 513,779.66 and 206,733.49 is: 285,283.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,315.84 : 513,779.66 = 206,733.49 : x
  2. Step 2: Convert to fraction form
    372,315.84/513,779.66 = 206,733.49/x
  3. Step 3: Cross multiply
    372,315.84x = 513,779.66 × 206,733.49
  4. Step 4: Simplify right side
    372,315.84x = 106,215,462,202.81
  5. Step 5: Solve for x
    x = 106,215,462,202.81/372,315.84
  6. Step 6: Final answer
    x = 285,283.22

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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.