Home / 283,099.64-390,688.10-162,264.20

Finding the Fourth Proportional to 283,099.64, 390,688.10 and 162,264.20

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Solution

The fourth proportional to 283,099.64, 390,688.10 and 162,264.20 is: 223,930.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,099.64 : 390,688.10 = 162,264.20 : x
  2. Step 2: Convert to fraction form
    283,099.64/390,688.10 = 162,264.20/x
  3. Step 3: Cross multiply
    283,099.64x = 390,688.10 × 162,264.20
  4. Step 4: Simplify right side
    283,099.64x = 63,394,691,996.02
  5. Step 5: Solve for x
    x = 63,394,691,996.02/283,099.64
  6. Step 6: Final answer
    x = 223,930.67

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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.