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Finding the Fourth Proportional to 200,215.30, 299,885.55 and 155,491.15

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Solution

The fourth proportional to 200,215.30, 299,885.55 and 155,491.15 is: 232,897.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,215.30 : 299,885.55 = 155,491.15 : x
  2. Step 2: Convert to fraction form
    200,215.30/299,885.55 = 155,491.15/x
  3. Step 3: Cross multiply
    200,215.30x = 299,885.55 × 155,491.15
  4. Step 4: Simplify right side
    200,215.30x = 46,629,549,037.88
  5. Step 5: Solve for x
    x = 46,629,549,037.88/200,215.30
  6. Step 6: Final answer
    x = 232,897.03

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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.