Home / 312,177.51-430,804.94-168,937.56

Finding the Fourth Proportional to 312,177.51, 430,804.94 and 168,937.56

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Solution

The fourth proportional to 312,177.51, 430,804.94 and 168,937.56 is: 233,133.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,177.51 : 430,804.94 = 168,937.56 : x
  2. Step 2: Convert to fraction form
    312,177.51/430,804.94 = 168,937.56/x
  3. Step 3: Cross multiply
    312,177.51x = 430,804.94 × 168,937.56
  4. Step 4: Simplify right side
    312,177.51x = 72,779,134,554.86
  5. Step 5: Solve for x
    x = 72,779,134,554.86/312,177.51
  6. Step 6: Final answer
    x = 233,133.82

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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.