Home / 380,570.08-525,187.38-210,800.56

Finding the Fourth Proportional to 380,570.08, 525,187.38 and 210,800.56

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Solution

The fourth proportional to 380,570.08, 525,187.38 and 210,800.56 is: 290,905.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,570.08 : 525,187.38 = 210,800.56 : x
  2. Step 2: Convert to fraction form
    380,570.08/525,187.38 = 210,800.56/x
  3. Step 3: Cross multiply
    380,570.08x = 525,187.38 × 210,800.56
  4. Step 4: Simplify right side
    380,570.08x = 110,709,793,808.93
  5. Step 5: Solve for x
    x = 110,709,793,808.93/380,570.08
  6. Step 6: Final answer
    x = 290,905.14

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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.