Home / 212,646.54-318,970.17-199,655.76

Finding the Fourth Proportional to 212,646.54, 318,970.17 and 199,655.76

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Solution

The fourth proportional to 212,646.54, 318,970.17 and 199,655.76 is: 299,483.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,646.54 : 318,970.17 = 199,655.76 : x
  2. Step 2: Convert to fraction form
    212,646.54/318,970.17 = 199,655.76/x
  3. Step 3: Cross multiply
    212,646.54x = 318,970.17 × 199,655.76
  4. Step 4: Simplify right side
    212,646.54x = 63,684,231,708.68
  5. Step 5: Solve for x
    x = 63,684,231,708.68/212,646.54
  6. Step 6: Final answer
    x = 299,483.98

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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.