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Finding the Fourth Proportional to 308,082.96, 425,165.76 and 170,263.08

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Solution

The fourth proportional to 308,082.96, 425,165.76 and 170,263.08 is: 234,969.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,082.96 : 425,165.76 = 170,263.08 : x
  2. Step 2: Convert to fraction form
    308,082.96/425,165.76 = 170,263.08/x
  3. Step 3: Cross multiply
    308,082.96x = 425,165.76 × 170,263.08
  4. Step 4: Simplify right side
    308,082.96x = 72,390,031,808.14
  5. Step 5: Solve for x
    x = 72,390,031,808.14/308,082.96
  6. Step 6: Final answer
    x = 234,969.28

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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.