Home / 380,636.52-525,240.18-210,838.92

Finding the Fourth Proportional to 380,636.52, 525,240.18 and 210,838.92

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Solution

The fourth proportional to 380,636.52, 525,240.18 and 210,838.92 is: 290,936.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,636.52 : 525,240.18 = 210,838.92 : x
  2. Step 2: Convert to fraction form
    380,636.52/525,240.18 = 210,838.92/x
  3. Step 3: Cross multiply
    380,636.52x = 525,240.18 × 210,838.92
  4. Step 4: Simplify right side
    380,636.52x = 110,741,072,291.81
  5. Step 5: Solve for x
    x = 110,741,072,291.81/380,636.52
  6. Step 6: Final answer
    x = 290,936.54

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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.