Home / 278,571.04-384,430.80-151,247.68

Finding the Fourth Proportional to 278,571.04, 384,430.80 and 151,247.68

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Solution

The fourth proportional to 278,571.04, 384,430.80 and 151,247.68 is: 208,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,571.04 : 384,430.80 = 151,247.68 : x
  2. Step 2: Convert to fraction form
    278,571.04/384,430.80 = 151,247.68/x
  3. Step 3: Cross multiply
    278,571.04x = 384,430.80 × 151,247.68
  4. Step 4: Simplify right side
    278,571.04x = 58,144,266,620.54
  5. Step 5: Solve for x
    x = 58,144,266,620.54/278,571.04
  6. Step 6: Final answer
    x = 208,723.30

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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.