Home / 280,848.51-387,571.11-153,524.13

Finding the Fourth Proportional to 280,848.51, 387,571.11 and 153,524.13

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Solution

The fourth proportional to 280,848.51, 387,571.11 and 153,524.13 is: 211,863.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,848.51 : 387,571.11 = 153,524.13 : x
  2. Step 2: Convert to fraction form
    280,848.51/387,571.11 = 153,524.13/x
  3. Step 3: Cross multiply
    280,848.51x = 387,571.11 × 153,524.13
  4. Step 4: Simplify right side
    280,848.51x = 59,501,517,475.88
  5. Step 5: Solve for x
    x = 59,501,517,475.88/280,848.51
  6. Step 6: Final answer
    x = 211,863.39

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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.