Home / 380,882.12-525,608.82-211,114.76

Finding the Fourth Proportional to 380,882.12, 525,608.82 and 211,114.76

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Solution

The fourth proportional to 380,882.12, 525,608.82 and 211,114.76 is: 291,333.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,882.12 : 525,608.82 = 211,114.76 : x
  2. Step 2: Convert to fraction form
    380,882.12/525,608.82 = 211,114.76/x
  3. Step 3: Cross multiply
    380,882.12x = 525,608.82 × 211,114.76
  4. Step 4: Simplify right side
    380,882.12x = 110,963,779,888.18
  5. Step 5: Solve for x
    x = 110,963,779,888.18/380,882.12
  6. Step 6: Final answer
    x = 291,333.65

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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.