Home / 355,691.04-490,869.36-204,836.64

Finding the Fourth Proportional to 355,691.04, 490,869.36 and 204,836.64

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Solution

The fourth proportional to 355,691.04, 490,869.36 and 204,836.64 is: 282,683.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,691.04 : 490,869.36 = 204,836.64 : x
  2. Step 2: Convert to fraction form
    355,691.04/490,869.36 = 204,836.64/x
  3. Step 3: Cross multiply
    355,691.04x = 490,869.36 × 204,836.64
  4. Step 4: Simplify right side
    355,691.04x = 100,548,030,381.35
  5. Step 5: Solve for x
    x = 100,548,030,381.35/355,691.04
  6. Step 6: Final answer
    x = 282,683.62

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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.