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Finding the Fourth Proportional to 291,391.38, 402,114.06 and 162,329.67

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Solution

The fourth proportional to 291,391.38, 402,114.06 and 162,329.67 is: 224,011.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,391.38 : 402,114.06 = 162,329.67 : x
  2. Step 2: Convert to fraction form
    291,391.38/402,114.06 = 162,329.67/x
  3. Step 3: Cross multiply
    291,391.38x = 402,114.06 × 162,329.67
  4. Step 4: Simplify right side
    291,391.38x = 65,275,042,662.16
  5. Step 5: Solve for x
    x = 65,275,042,662.16/291,391.38
  6. Step 6: Final answer
    x = 224,011.58

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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.