Home / 399,282.54-551,258.61-254,170.23

Finding the Fourth Proportional to 399,282.54, 551,258.61 and 254,170.23

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Solution

The fourth proportional to 399,282.54, 551,258.61 and 254,170.23 is: 350,913.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,282.54 : 551,258.61 = 254,170.23 : x
  2. Step 2: Convert to fraction form
    399,282.54/551,258.61 = 254,170.23/x
  3. Step 3: Cross multiply
    399,282.54x = 551,258.61 × 254,170.23
  4. Step 4: Simplify right side
    399,282.54x = 140,113,527,693.18
  5. Step 5: Solve for x
    x = 140,113,527,693.18/399,282.54
  6. Step 6: Final answer
    x = 350,913.23

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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.