Home / 380,492.68-525,089.12-210,739.36

Finding the Fourth Proportional to 380,492.68, 525,089.12 and 210,739.36

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Solution

The fourth proportional to 380,492.68, 525,089.12 and 210,739.36 is: 290,825.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,492.68 : 525,089.12 = 210,739.36 : x
  2. Step 2: Convert to fraction form
    380,492.68/525,089.12 = 210,739.36/x
  3. Step 3: Cross multiply
    380,492.68x = 525,089.12 × 210,739.36
  4. Step 4: Simplify right side
    380,492.68x = 110,656,945,091.76
  5. Step 5: Solve for x
    x = 110,656,945,091.76/380,492.68
  6. Step 6: Final answer
    x = 290,825.42

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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.