Home / 380,412.72-524,963.14-210,643.20

Finding the Fourth Proportional to 380,412.72, 524,963.14 and 210,643.20

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Solution

The fourth proportional to 380,412.72, 524,963.14 and 210,643.20 is: 290,684.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,412.72 : 524,963.14 = 210,643.20 : x
  2. Step 2: Convert to fraction form
    380,412.72/524,963.14 = 210,643.20/x
  3. Step 3: Cross multiply
    380,412.72x = 524,963.14 × 210,643.20
  4. Step 4: Simplify right side
    380,412.72x = 110,579,915,691.65
  5. Step 5: Solve for x
    x = 110,579,915,691.65/380,412.72
  6. Step 6: Final answer
    x = 290,684.06

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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.