Home / 212,478.12-318,642.89-62,678.63

Finding the Fourth Proportional to 212,478.12, 318,642.89 and 62,678.63

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Solution

The fourth proportional to 212,478.12, 318,642.89 and 62,678.63 is: 93,996.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,478.12 : 318,642.89 = 62,678.63 : x
  2. Step 2: Convert to fraction form
    212,478.12/318,642.89 = 62,678.63/x
  3. Step 3: Cross multiply
    212,478.12x = 318,642.89 × 62,678.63
  4. Step 4: Simplify right side
    212,478.12x = 19,972,099,804.44
  5. Step 5: Solve for x
    x = 19,972,099,804.44/212,478.12
  6. Step 6: Final answer
    x = 93,996.03

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1.5x scale

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.