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Finding the Fourth Proportional to 355,075.84, 490,002.03 and 193,930.96

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Solution

The fourth proportional to 355,075.84, 490,002.03 and 193,930.96 is: 267,623.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,075.84 : 490,002.03 = 193,930.96 : x
  2. Step 2: Convert to fraction form
    355,075.84/490,002.03 = 193,930.96/x
  3. Step 3: Cross multiply
    355,075.84x = 490,002.03 × 193,930.96
  4. Step 4: Simplify right side
    355,075.84x = 95,026,564,079.85
  5. Step 5: Solve for x
    x = 95,026,564,079.85/355,075.84
  6. Step 6: Final answer
    x = 267,623.29

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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.