Home / 380,399.79-524,945.30-210,630.27

Finding the Fourth Proportional to 380,399.79, 524,945.30 and 210,630.27

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Solution

The fourth proportional to 380,399.79, 524,945.30 and 210,630.27 is: 290,666.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,399.79 : 524,945.30 = 210,630.27 : x
  2. Step 2: Convert to fraction form
    380,399.79/524,945.30 = 210,630.27/x
  3. Step 3: Cross multiply
    380,399.79x = 524,945.30 × 210,630.27
  4. Step 4: Simplify right side
    380,399.79x = 110,569,369,221.08
  5. Step 5: Solve for x
    x = 110,569,369,221.08/380,399.79
  6. Step 6: Final answer
    x = 290,666.22

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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.