Home / 207,916.70-311,875.05-113,438.30

Finding the Fourth Proportional to 207,916.70, 311,875.05 and 113,438.30

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Solution

The fourth proportional to 207,916.70, 311,875.05 and 113,438.30 is: 170,157.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,916.70 : 311,875.05 = 113,438.30 : x
  2. Step 2: Convert to fraction form
    207,916.70/311,875.05 = 113,438.30/x
  3. Step 3: Cross multiply
    207,916.70x = 311,875.05 × 113,438.30
  4. Step 4: Simplify right side
    207,916.70x = 35,378,575,484.42
  5. Step 5: Solve for x
    x = 35,378,575,484.42/207,916.70
  6. Step 6: Final answer
    x = 170,157.45

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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.