Home / 380,605.43-525,267.51-210,855.35

Finding the Fourth Proportional to 380,605.43, 525,267.51 and 210,855.35

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Solution

The fourth proportional to 380,605.43, 525,267.51 and 210,855.35 is: 290,998.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,605.43 : 525,267.51 = 210,855.35 : x
  2. Step 2: Convert to fraction form
    380,605.43/525,267.51 = 210,855.35/x
  3. Step 3: Cross multiply
    380,605.43x = 525,267.51 × 210,855.35
  4. Step 4: Simplify right side
    380,605.43x = 110,755,464,664.68
  5. Step 5: Solve for x
    x = 110,755,464,664.68/380,605.43
  6. Step 6: Final answer
    x = 290,998.12

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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.