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Finding the Fourth Proportional to 375,343.71, 518,011.55 and 214,223.16

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Solution

The fourth proportional to 375,343.71, 518,011.55 and 214,223.16 is: 295,649.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,343.71 : 518,011.55 = 214,223.16 : x
  2. Step 2: Convert to fraction form
    375,343.71/518,011.55 = 214,223.16/x
  3. Step 3: Cross multiply
    375,343.71x = 518,011.55 × 214,223.16
  4. Step 4: Simplify right side
    375,343.71x = 110,970,071,157.50
  5. Step 5: Solve for x
    x = 110,970,071,157.50/375,343.71
  6. Step 6: Final answer
    x = 295,649.21

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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.