Home / 279,047.70-385,075.22-151,723.40

Finding the Fourth Proportional to 279,047.70, 385,075.22 and 151,723.40

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Solution

The fourth proportional to 279,047.70, 385,075.22 and 151,723.40 is: 209,372.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,047.70 : 385,075.22 = 151,723.40 : x
  2. Step 2: Convert to fraction form
    279,047.70/385,075.22 = 151,723.40/x
  3. Step 3: Cross multiply
    279,047.70x = 385,075.22 × 151,723.40
  4. Step 4: Simplify right side
    279,047.70x = 58,424,918,950.15
  5. Step 5: Solve for x
    x = 58,424,918,950.15/279,047.70
  6. Step 6: Final answer
    x = 209,372.52

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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.