Home / 212,238.16-318,075.96-155,814.47

Finding the Fourth Proportional to 212,238.16, 318,075.96 and 155,814.47

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Solution

The fourth proportional to 212,238.16, 318,075.96 and 155,814.47 is: 233,515.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,238.16 : 318,075.96 = 155,814.47 : x
  2. Step 2: Convert to fraction form
    212,238.16/318,075.96 = 155,814.47/x
  3. Step 3: Cross multiply
    212,238.16x = 318,075.96 × 155,814.47
  4. Step 4: Simplify right side
    212,238.16x = 49,560,837,313.85
  5. Step 5: Solve for x
    x = 49,560,837,313.85/212,238.16
  6. Step 6: Final answer
    x = 233,515.21

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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.