Home / 285,487.38-427,945.95-190,797.30

Finding the Fourth Proportional to 285,487.38, 427,945.95 and 190,797.30

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Solution

The fourth proportional to 285,487.38, 427,945.95 and 190,797.30 is: 286,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,487.38 : 427,945.95 = 190,797.30 : x
  2. Step 2: Convert to fraction form
    285,487.38/427,945.95 = 190,797.30/x
  3. Step 3: Cross multiply
    285,487.38x = 427,945.95 × 190,797.30
  4. Step 4: Simplify right side
    285,487.38x = 81,650,931,805.94
  5. Step 5: Solve for x
    x = 81,650,931,805.94/285,487.38
  6. Step 6: Final answer
    x = 286,005.40

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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.