Home / 274,499.03-378,816.67-153,637.21

Finding the Fourth Proportional to 274,499.03, 378,816.67 and 153,637.21

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Solution

The fourth proportional to 274,499.03, 378,816.67 and 153,637.21 is: 212,023.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,499.03 : 378,816.67 = 153,637.21 : x
  2. Step 2: Convert to fraction form
    274,499.03/378,816.67 = 153,637.21/x
  3. Step 3: Cross multiply
    274,499.03x = 378,816.67 × 153,637.21
  4. Step 4: Simplify right side
    274,499.03x = 58,200,333,950.81
  5. Step 5: Solve for x
    x = 58,200,333,950.81/274,499.03
  6. Step 6: Final answer
    x = 212,023.83

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1.5x scale

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.