Home / 268,811.20-370,935.36-155,641.60

Finding the Fourth Proportional to 268,811.20, 370,935.36 and 155,641.60

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Solution

The fourth proportional to 268,811.20, 370,935.36 and 155,641.60 is: 214,771.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,811.20 : 370,935.36 = 155,641.60 : x
  2. Step 2: Convert to fraction form
    268,811.20/370,935.36 = 155,641.60/x
  3. Step 3: Cross multiply
    268,811.20x = 370,935.36 × 155,641.60
  4. Step 4: Simplify right side
    268,811.20x = 57,732,972,926.98
  5. Step 5: Solve for x
    x = 57,732,972,926.98/268,811.20
  6. Step 6: Final answer
    x = 214,771.46

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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.