Home / 280,828.22-387,541.26-153,504.72

Finding the Fourth Proportional to 280,828.22, 387,541.26 and 153,504.72

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Solution

The fourth proportional to 280,828.22, 387,541.26 and 153,504.72 is: 211,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,828.22 : 387,541.26 = 153,504.72 : x
  2. Step 2: Convert to fraction form
    280,828.22/387,541.26 = 153,504.72/x
  3. Step 3: Cross multiply
    280,828.22x = 387,541.26 × 153,504.72
  4. Step 4: Simplify right side
    280,828.22x = 59,489,412,604.75
  5. Step 5: Solve for x
    x = 59,489,412,604.75/280,828.22
  6. Step 6: Final answer
    x = 211,835.60

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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.