Home / 312,111.68-430,715.60-176,151.36

Finding the Fourth Proportional to 312,111.68, 430,715.60 and 176,151.36

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Solution

The fourth proportional to 312,111.68, 430,715.60 and 176,151.36 is: 243,089.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,111.68 : 430,715.60 = 176,151.36 : x
  2. Step 2: Convert to fraction form
    312,111.68/430,715.60 = 176,151.36/x
  3. Step 3: Cross multiply
    312,111.68x = 430,715.60 × 176,151.36
  4. Step 4: Simplify right side
    312,111.68x = 75,871,137,832.46
  5. Step 5: Solve for x
    x = 75,871,137,832.46/312,111.68
  6. Step 6: Final answer
    x = 243,089.71

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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.