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Finding the Fourth Proportional to 323,649.51, 446,827.70 and 287,740.17

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Solution

The fourth proportional to 323,649.51, 446,827.70 and 287,740.17 is: 397,251.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,649.51 : 446,827.70 = 287,740.17 : x
  2. Step 2: Convert to fraction form
    323,649.51/446,827.70 = 287,740.17/x
  3. Step 3: Cross multiply
    323,649.51x = 446,827.70 × 287,740.17
  4. Step 4: Simplify right side
    323,649.51x = 128,570,278,358.71
  5. Step 5: Solve for x
    x = 128,570,278,358.71/323,649.51
  6. Step 6: Final answer
    x = 397,251.58

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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.