Home / 278,544.32-384,393.28-151,220.40

Finding the Fourth Proportional to 278,544.32, 384,393.28 and 151,220.40

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Solution

The fourth proportional to 278,544.32, 384,393.28 and 151,220.40 is: 208,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,544.32 : 384,393.28 = 151,220.40 : x
  2. Step 2: Convert to fraction form
    278,544.32/384,393.28 = 151,220.40/x
  3. Step 3: Cross multiply
    278,544.32x = 384,393.28 × 151,220.40
  4. Step 4: Simplify right side
    278,544.32x = 58,128,105,558.91
  5. Step 5: Solve for x
    x = 58,128,105,558.91/278,544.32
  6. Step 6: Final answer
    x = 208,685.30

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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.