Home / 312,134.48-430,744.20-168,897.06

Finding the Fourth Proportional to 312,134.48, 430,744.20 and 168,897.06

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Solution

The fourth proportional to 312,134.48, 430,744.20 and 168,897.06 is: 233,077.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,134.48 : 430,744.20 = 168,897.06 : x
  2. Step 2: Convert to fraction form
    312,134.48/430,744.20 = 168,897.06/x
  3. Step 3: Cross multiply
    312,134.48x = 430,744.20 × 168,897.06
  4. Step 4: Simplify right side
    312,134.48x = 72,751,428,992.05
  5. Step 5: Solve for x
    x = 72,751,428,992.05/312,134.48
  6. Step 6: Final answer
    x = 233,077.19

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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.