Home / 261,797.22-361,280.21-145,510.70

Finding the Fourth Proportional to 261,797.22, 361,280.21 and 145,510.70

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Solution

The fourth proportional to 261,797.22, 361,280.21 and 145,510.70 is: 200,804.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,797.22 : 361,280.21 = 145,510.70 : x
  2. Step 2: Convert to fraction form
    261,797.22/361,280.21 = 145,510.70/x
  3. Step 3: Cross multiply
    261,797.22x = 361,280.21 × 145,510.70
  4. Step 4: Simplify right side
    261,797.22x = 52,570,133,719.29
  5. Step 5: Solve for x
    x = 52,570,133,719.29/261,797.22
  6. Step 6: Final answer
    x = 200,804.78

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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.