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Finding the Fourth Proportional to 436,292.21, 601,881.15 and 255,011.78

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Solution

The fourth proportional to 436,292.21, 601,881.15 and 255,011.78 is: 351,798.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,292.21 : 601,881.15 = 255,011.78 : x
  2. Step 2: Convert to fraction form
    436,292.21/601,881.15 = 255,011.78/x
  3. Step 3: Cross multiply
    436,292.21x = 601,881.15 × 255,011.78
  4. Step 4: Simplify right side
    436,292.21x = 153,486,780,400.54
  5. Step 5: Solve for x
    x = 153,486,780,400.54/436,292.21
  6. Step 6: Final answer
    x = 351,798.13

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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.