Home / 312,111.62-430,710.96-168,868.52

Finding the Fourth Proportional to 312,111.62, 430,710.96 and 168,868.52

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Solution

The fourth proportional to 312,111.62, 430,710.96 and 168,868.52 is: 233,036.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,111.62 : 430,710.96 = 168,868.52 : x
  2. Step 2: Convert to fraction form
    312,111.62/430,710.96 = 168,868.52/x
  3. Step 3: Cross multiply
    312,111.62x = 430,710.96 × 168,868.52
  4. Step 4: Simplify right side
    312,111.62x = 72,733,522,362.98
  5. Step 5: Solve for x
    x = 72,733,522,362.98/312,111.62
  6. Step 6: Final answer
    x = 233,036.89

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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.