Home / 357,871-493,868.22-196,732.84

Finding the Fourth Proportional to 357,871, 493,868.22 and 196,732.84

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Solution

The fourth proportional to 357,871, 493,868.22 and 196,732.84 is: 271,494.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,871 : 493,868.22 = 196,732.84 : x
  2. Step 2: Convert to fraction form
    357,871/493,868.22 = 196,732.84/x
  3. Step 3: Cross multiply
    357,871x = 493,868.22 × 196,732.84
  4. Step 4: Simplify right side
    357,871x = 97,160,097,506.34
  5. Step 5: Solve for x
    x = 97,160,097,506.34/357,871
  6. Step 6: Final answer
    x = 271,494.75

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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.