Home / 382,848.12-528,335.46-210,786.12

Finding the Fourth Proportional to 382,848.12, 528,335.46 and 210,786.12

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Solution

The fourth proportional to 382,848.12, 528,335.46 and 210,786.12 is: 290,887.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,848.12 : 528,335.46 = 210,786.12 : x
  2. Step 2: Convert to fraction form
    382,848.12/528,335.46 = 210,786.12/x
  3. Step 3: Cross multiply
    382,848.12x = 528,335.46 × 210,786.12
  4. Step 4: Simplify right side
    382,848.12x = 111,365,781,671.82
  5. Step 5: Solve for x
    x = 111,365,781,671.82/382,848.12
  6. Step 6: Final answer
    x = 290,887.63

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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.