Home / 380,618.04-525,214.62-210,820.44

Finding the Fourth Proportional to 380,618.04, 525,214.62 and 210,820.44

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Solution

The fourth proportional to 380,618.04, 525,214.62 and 210,820.44 is: 290,911.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,618.04 : 525,214.62 = 210,820.44 : x
  2. Step 2: Convert to fraction form
    380,618.04/525,214.62 = 210,820.44/x
  3. Step 3: Cross multiply
    380,618.04x = 525,214.62 × 210,820.44
  4. Step 4: Simplify right side
    380,618.04x = 110,725,977,282.83
  5. Step 5: Solve for x
    x = 110,725,977,282.83/380,618.04
  6. Step 6: Final answer
    x = 290,911.01

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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.