Home / 212,570.30-318,479.48-199,926.74

Finding the Fourth Proportional to 212,570.30, 318,479.48 and 199,926.74

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Solution

The fourth proportional to 212,570.30, 318,479.48 and 199,926.74 is: 299,536.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,570.30 : 318,479.48 = 199,926.74 : x
  2. Step 2: Convert to fraction form
    212,570.30/318,479.48 = 199,926.74/x
  3. Step 3: Cross multiply
    212,570.30x = 318,479.48 × 199,926.74
  4. Step 4: Simplify right side
    212,570.30x = 63,672,564,739.59
  5. Step 5: Solve for x
    x = 63,672,564,739.59/212,570.30
  6. Step 6: Final answer
    x = 299,536.50

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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.