Home / 262,441.20-393,661.80-155,996.40

Finding the Fourth Proportional to 262,441.20, 393,661.80 and 155,996.40

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Solution

The fourth proportional to 262,441.20, 393,661.80 and 155,996.40 is: 233,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,441.20 : 393,661.80 = 155,996.40 : x
  2. Step 2: Convert to fraction form
    262,441.20/393,661.80 = 155,996.40/x
  3. Step 3: Cross multiply
    262,441.20x = 393,661.80 × 155,996.40
  4. Step 4: Simplify right side
    262,441.20x = 61,409,823,617.52
  5. Step 5: Solve for x
    x = 61,409,823,617.52/262,441.20
  6. Step 6: Final answer
    x = 233,994.60

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1.5x scale

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.