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Finding the Fourth Proportional to 262,082.01, 392,890.30 and 102,120.89

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Solution

The fourth proportional to 262,082.01, 392,890.30 and 102,120.89 is: 153,090.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,082.01 : 392,890.30 = 102,120.89 : x
  2. Step 2: Convert to fraction form
    262,082.01/392,890.30 = 102,120.89/x
  3. Step 3: Cross multiply
    262,082.01x = 392,890.30 × 102,120.89
  4. Step 4: Simplify right side
    262,082.01x = 40,122,306,597.76
  5. Step 5: Solve for x
    x = 40,122,306,597.76/262,082.01
  6. Step 6: Final answer
    x = 153,090.66

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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.