Home / 278,027.03-383,653.45-161,762.01

Finding the Fourth Proportional to 278,027.03, 383,653.45 and 161,762.01

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Solution

The fourth proportional to 278,027.03, 383,653.45 and 161,762.01 is: 223,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,027.03 : 383,653.45 = 161,762.01 : x
  2. Step 2: Convert to fraction form
    278,027.03/383,653.45 = 161,762.01/x
  3. Step 3: Cross multiply
    278,027.03x = 383,653.45 × 161,762.01
  4. Step 4: Simplify right side
    278,027.03x = 62,060,553,619.84
  5. Step 5: Solve for x
    x = 62,060,553,619.84/278,027.03
  6. Step 6: Final answer
    x = 223,217.70

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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.