Home / 380,393.12-524,945.04-210,638.24

Finding the Fourth Proportional to 380,393.12, 524,945.04 and 210,638.24

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Solution

The fourth proportional to 380,393.12, 524,945.04 and 210,638.24 is: 290,682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,393.12 : 524,945.04 = 210,638.24 : x
  2. Step 2: Convert to fraction form
    380,393.12/524,945.04 = 210,638.24/x
  3. Step 3: Cross multiply
    380,393.12x = 524,945.04 × 210,638.24
  4. Step 4: Simplify right side
    380,393.12x = 110,573,499,322.33
  5. Step 5: Solve for x
    x = 110,573,499,322.33/380,393.12
  6. Step 6: Final answer
    x = 290,682.17

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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.