Home / 278,470.04-384,278.36-151,142.92

Finding the Fourth Proportional to 278,470.04, 384,278.36 and 151,142.92

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Solution

The fourth proportional to 278,470.04, 384,278.36 and 151,142.92 is: 208,571.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,470.04 : 384,278.36 = 151,142.92 : x
  2. Step 2: Convert to fraction form
    278,470.04/384,278.36 = 151,142.92/x
  3. Step 3: Cross multiply
    278,470.04x = 384,278.36 × 151,142.92
  4. Step 4: Simplify right side
    278,470.04x = 58,080,953,423.21
  5. Step 5: Solve for x
    x = 58,080,953,423.21/278,470.04
  6. Step 6: Final answer
    x = 208,571.64

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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.