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Finding the Fourth Proportional to 292,075.80, 437,141.70 and 211,885.80

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Solution

The fourth proportional to 292,075.80, 437,141.70 and 211,885.80 is: 317,123.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,075.80 : 437,141.70 = 211,885.80 : x
  2. Step 2: Convert to fraction form
    292,075.80/437,141.70 = 211,885.80/x
  3. Step 3: Cross multiply
    292,075.80x = 437,141.70 × 211,885.80
  4. Step 4: Simplify right side
    292,075.80x = 92,624,118,817.86
  5. Step 5: Solve for x
    x = 92,624,118,817.86/292,075.80
  6. Step 6: Final answer
    x = 317,123.56

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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.