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Finding the Fourth Proportional to 371,718.98, 512,997.58 and 210,575.36

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Solution

The fourth proportional to 371,718.98, 512,997.58 and 210,575.36 is: 290,608.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,718.98 : 512,997.58 = 210,575.36 : x
  2. Step 2: Convert to fraction form
    371,718.98/512,997.58 = 210,575.36/x
  3. Step 3: Cross multiply
    371,718.98x = 512,997.58 × 210,575.36
  4. Step 4: Simplify right side
    371,718.98x = 108,024,650,087.63
  5. Step 5: Solve for x
    x = 108,024,650,087.63/371,718.98
  6. Step 6: Final answer
    x = 290,608.38

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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.