Home / 380,463.12-525,054.90-210,697.32

Finding the Fourth Proportional to 380,463.12, 525,054.90 and 210,697.32

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Solution

The fourth proportional to 380,463.12, 525,054.90 and 210,697.32 is: 290,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,463.12 : 525,054.90 = 210,697.32 : x
  2. Step 2: Convert to fraction form
    380,463.12/525,054.90 = 210,697.32/x
  3. Step 3: Cross multiply
    380,463.12x = 525,054.90 × 210,697.32
  4. Step 4: Simplify right side
    380,463.12x = 110,627,660,282.87
  5. Step 5: Solve for x
    x = 110,627,660,282.87/380,463.12
  6. Step 6: Final answer
    x = 290,771.05

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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.