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Finding the Fourth Proportional to 291,082.95, 401,666.04 and 163,755.81

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Solution

The fourth proportional to 291,082.95, 401,666.04 and 163,755.81 is: 225,967.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,082.95 : 401,666.04 = 163,755.81 : x
  2. Step 2: Convert to fraction form
    291,082.95/401,666.04 = 163,755.81/x
  3. Step 3: Cross multiply
    291,082.95x = 401,666.04 × 163,755.81
  4. Step 4: Simplify right side
    291,082.95x = 65,775,147,729.69
  5. Step 5: Solve for x
    x = 65,775,147,729.69/291,082.95
  6. Step 6: Final answer
    x = 225,967.02

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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.