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Finding the Fourth Proportional to 375,523.76, 518,271 and 214,341.86

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Solution

The fourth proportional to 375,523.76, 518,271 and 214,341.86 is: 295,819.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,523.76 : 518,271 = 214,341.86 : x
  2. Step 2: Convert to fraction form
    375,523.76/518,271 = 214,341.86/x
  3. Step 3: Cross multiply
    375,523.76x = 518,271 × 214,341.86
  4. Step 4: Simplify right side
    375,523.76x = 111,087,170,124.06
  5. Step 5: Solve for x
    x = 111,087,170,124.06/375,523.76
  6. Step 6: Final answer
    x = 295,819.28

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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.