Home / 380,493.20-525,080.40-210,727.16

Finding the Fourth Proportional to 380,493.20, 525,080.40 and 210,727.16

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Solution

The fourth proportional to 380,493.20, 525,080.40 and 210,727.16 is: 290,803.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,493.20 : 525,080.40 = 210,727.16 : x
  2. Step 2: Convert to fraction form
    380,493.20/525,080.40 = 210,727.16/x
  3. Step 3: Cross multiply
    380,493.20x = 525,080.40 × 210,727.16
  4. Step 4: Simplify right side
    380,493.20x = 110,648,701,463.66
  5. Step 5: Solve for x
    x = 110,648,701,463.66/380,493.20
  6. Step 6: Final answer
    x = 290,803.36

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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.