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Finding the Fourth Proportional to 311,183.34, 429,454.40 and 173,383.91

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Solution

The fourth proportional to 311,183.34, 429,454.40 and 173,383.91 is: 239,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,183.34 : 429,454.40 = 173,383.91 : x
  2. Step 2: Convert to fraction form
    311,183.34/429,454.40 = 173,383.91/x
  3. Step 3: Cross multiply
    311,183.34x = 429,454.40 × 173,383.91
  4. Step 4: Simplify right side
    311,183.34x = 74,460,480,024.51
  5. Step 5: Solve for x
    x = 74,460,480,024.51/311,183.34
  6. Step 6: Final answer
    x = 239,281.70

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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.