Home / 311,870.68-430,448.24-197,076.26

Finding the Fourth Proportional to 311,870.68, 430,448.24 and 197,076.26

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Solution

The fourth proportional to 311,870.68, 430,448.24 and 197,076.26 is: 272,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,870.68 : 430,448.24 = 197,076.26 : x
  2. Step 2: Convert to fraction form
    311,870.68/430,448.24 = 197,076.26/x
  3. Step 3: Cross multiply
    311,870.68x = 430,448.24 × 197,076.26
  4. Step 4: Simplify right side
    311,870.68x = 84,831,130,831.59
  5. Step 5: Solve for x
    x = 84,831,130,831.59/311,870.68
  6. Step 6: Final answer
    x = 272,007.40

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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.