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Finding the Fourth Proportional to 351,510.99, 485,082.60 and 190,362.30

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Solution

The fourth proportional to 351,510.99, 485,082.60 and 190,362.30 is: 262,698.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,510.99 : 485,082.60 = 190,362.30 : x
  2. Step 2: Convert to fraction form
    351,510.99/485,082.60 = 190,362.30/x
  3. Step 3: Cross multiply
    351,510.99x = 485,082.60 × 190,362.30
  4. Step 4: Simplify right side
    351,510.99x = 92,341,439,425.98
  5. Step 5: Solve for x
    x = 92,341,439,425.98/351,510.99
  6. Step 6: Final answer
    x = 262,698.58

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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.