Home / 312,111.36-430,715.16-176,151.03

Finding the Fourth Proportional to 312,111.36, 430,715.16 and 176,151.03

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Solution

The fourth proportional to 312,111.36, 430,715.16 and 176,151.03 is: 243,089.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,111.36 : 430,715.16 = 176,151.03 : x
  2. Step 2: Convert to fraction form
    312,111.36/430,715.16 = 176,151.03/x
  3. Step 3: Cross multiply
    312,111.36x = 430,715.16 × 176,151.03
  4. Step 4: Simplify right side
    312,111.36x = 75,870,918,189.86
  5. Step 5: Solve for x
    x = 75,870,918,189.86/312,111.36
  6. Step 6: Final answer
    x = 243,089.26

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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.