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Finding the Fourth Proportional to 316,751.72, 437,117.45 and 173,516.85

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Solution

The fourth proportional to 316,751.72, 437,117.45 and 173,516.85 is: 239,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,751.72 : 437,117.45 = 173,516.85 : x
  2. Step 2: Convert to fraction form
    316,751.72/437,117.45 = 173,516.85/x
  3. Step 3: Cross multiply
    316,751.72x = 437,117.45 × 173,516.85
  4. Step 4: Simplify right side
    316,751.72x = 75,847,242,136.45
  5. Step 5: Solve for x
    x = 75,847,242,136.45/316,751.72
  6. Step 6: Final answer
    x = 239,453.30

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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.