Home / 380,417.66-524,992.19-210,651.78

Finding the Fourth Proportional to 380,417.66, 524,992.19 and 210,651.78

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Solution

The fourth proportional to 380,417.66, 524,992.19 and 210,651.78 is: 290,708.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,417.66 : 524,992.19 = 210,651.78 : x
  2. Step 2: Convert to fraction form
    380,417.66/524,992.19 = 210,651.78/x
  3. Step 3: Cross multiply
    380,417.66x = 524,992.19 × 210,651.78
  4. Step 4: Simplify right side
    380,417.66x = 110,590,538,256.34
  5. Step 5: Solve for x
    x = 110,590,538,256.34/380,417.66
  6. Step 6: Final answer
    x = 290,708.22

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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.