Home / 315,239.12-434,966.60-200,563.28

Finding the Fourth Proportional to 315,239.12, 434,966.60 and 200,563.28

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Solution

The fourth proportional to 315,239.12, 434,966.60 and 200,563.28 is: 276,737.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,239.12 : 434,966.60 = 200,563.28 : x
  2. Step 2: Convert to fraction form
    315,239.12/434,966.60 = 200,563.28/x
  3. Step 3: Cross multiply
    315,239.12x = 434,966.60 × 200,563.28
  4. Step 4: Simplify right side
    315,239.12x = 87,238,327,986.45
  5. Step 5: Solve for x
    x = 87,238,327,986.45/315,239.12
  6. Step 6: Final answer
    x = 276,737.00

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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.