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Finding the Fourth Proportional to 464,037.69, 640,361.34 and 270,433.05

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Solution

The fourth proportional to 464,037.69, 640,361.34 and 270,433.05 is: 373,191.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,037.69 : 640,361.34 = 270,433.05 : x
  2. Step 2: Convert to fraction form
    464,037.69/640,361.34 = 270,433.05/x
  3. Step 3: Cross multiply
    464,037.69x = 640,361.34 × 270,433.05
  4. Step 4: Simplify right side
    464,037.69x = 173,174,870,278.29
  5. Step 5: Solve for x
    x = 173,174,870,278.29/464,037.69
  6. Step 6: Final answer
    x = 373,191.39

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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.