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Finding the Fourth Proportional to 316,578.79, 436,792.12 and 203,467.15

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Solution

The fourth proportional to 316,578.79, 436,792.12 and 203,467.15 is: 280,729.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,578.79 : 436,792.12 = 203,467.15 : x
  2. Step 2: Convert to fraction form
    316,578.79/436,792.12 = 203,467.15/x
  3. Step 3: Cross multiply
    316,578.79x = 436,792.12 × 203,467.15
  4. Step 4: Simplify right side
    316,578.79x = 88,872,847,798.86
  5. Step 5: Solve for x
    x = 88,872,847,798.86/316,578.79
  6. Step 6: Final answer
    x = 280,729.00

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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.