Home / 268,558.40-370,581.54-155,360

Finding the Fourth Proportional to 268,558.40, 370,581.54 and 155,360

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Solution

The fourth proportional to 268,558.40, 370,581.54 and 155,360 is: 214,379.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,558.40 : 370,581.54 = 155,360 : x
  2. Step 2: Convert to fraction form
    268,558.40/370,581.54 = 155,360/x
  3. Step 3: Cross multiply
    268,558.40x = 370,581.54 × 155,360
  4. Step 4: Simplify right side
    268,558.40x = 57,573,548,054.40
  5. Step 5: Solve for x
    x = 57,573,548,054.40/268,558.40
  6. Step 6: Final answer
    x = 214,379.99

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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.