Home / 311,927.28-430,460.64-168,688.32

Finding the Fourth Proportional to 311,927.28, 430,460.64 and 168,688.32

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Solution

The fourth proportional to 311,927.28, 430,460.64 and 168,688.32 is: 232,790.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,927.28 : 430,460.64 = 168,688.32 : x
  2. Step 2: Convert to fraction form
    311,927.28/430,460.64 = 168,688.32/x
  3. Step 3: Cross multiply
    311,927.28x = 430,460.64 × 168,688.32
  4. Step 4: Simplify right side
    311,927.28x = 72,613,682,187.72
  5. Step 5: Solve for x
    x = 72,613,682,187.72/311,927.28
  6. Step 6: Final answer
    x = 232,790.42

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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.