Home / 259,117.02-388,727.76-109,357.46

Finding the Fourth Proportional to 259,117.02, 388,727.76 and 109,357.46

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Solution

The fourth proportional to 259,117.02, 388,727.76 and 109,357.46 is: 164,058.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,117.02 : 388,727.76 = 109,357.46 : x
  2. Step 2: Convert to fraction form
    259,117.02/388,727.76 = 109,357.46/x
  3. Step 3: Cross multiply
    259,117.02x = 388,727.76 × 109,357.46
  4. Step 4: Simplify right side
    259,117.02x = 42,510,280,465.09
  5. Step 5: Solve for x
    x = 42,510,280,465.09/259,117.02
  6. Step 6: Final answer
    x = 164,058.23

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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.