Home / 258,410.02-387,220.30-108,568.38

Finding the Fourth Proportional to 258,410.02, 387,220.30 and 108,568.38

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Solution

The fourth proportional to 258,410.02, 387,220.30 and 108,568.38 is: 162,686.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,410.02 : 387,220.30 = 108,568.38 : x
  2. Step 2: Convert to fraction form
    258,410.02/387,220.30 = 108,568.38/x
  3. Step 3: Cross multiply
    258,410.02x = 387,220.30 × 108,568.38
  4. Step 4: Simplify right side
    258,410.02x = 42,039,880,674.11
  5. Step 5: Solve for x
    x = 42,039,880,674.11/258,410.02
  6. Step 6: Final answer
    x = 162,686.73

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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.