Home / 278,509.06-384,342.99-151,184.74

Finding the Fourth Proportional to 278,509.06, 384,342.99 and 151,184.74

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Solution

The fourth proportional to 278,509.06, 384,342.99 and 151,184.74 is: 208,635.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,509.06 : 384,342.99 = 151,184.74 : x
  2. Step 2: Convert to fraction form
    278,509.06/384,342.99 = 151,184.74/x
  3. Step 3: Cross multiply
    278,509.06x = 384,342.99 × 151,184.74
  4. Step 4: Simplify right side
    278,509.06x = 58,106,795,013.97
  5. Step 5: Solve for x
    x = 58,106,795,013.97/278,509.06
  6. Step 6: Final answer
    x = 208,635.21

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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.