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Finding the Fourth Proportional to 371,757.45, 513,024.01 and 210,643.26

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Solution

The fourth proportional to 371,757.45, 513,024.01 and 210,643.26 is: 290,686.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,757.45 : 513,024.01 = 210,643.26 : x
  2. Step 2: Convert to fraction form
    371,757.45/513,024.01 = 210,643.26/x
  3. Step 3: Cross multiply
    371,757.45x = 513,024.01 × 210,643.26
  4. Step 4: Simplify right side
    371,757.45x = 108,065,049,924.67
  5. Step 5: Solve for x
    x = 108,065,049,924.67/371,757.45
  6. Step 6: Final answer
    x = 290,686.98

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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.