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Finding the Fourth Proportional to 292,085.80, 437,156.70 and 211,895.80

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Solution

The fourth proportional to 292,085.80, 437,156.70 and 211,895.80 is: 317,138.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,085.80 : 437,156.70 = 211,895.80 : x
  2. Step 2: Convert to fraction form
    292,085.80/437,156.70 = 211,895.80/x
  3. Step 3: Cross multiply
    292,085.80x = 437,156.70 × 211,895.80
  4. Step 4: Simplify right side
    292,085.80x = 92,631,668,671.86
  5. Step 5: Solve for x
    x = 92,631,668,671.86/292,085.80
  6. Step 6: Final answer
    x = 317,138.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.