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Finding the Fourth Proportional to 372,645.88, 514,235.85 and 211,498

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Solution

The fourth proportional to 372,645.88, 514,235.85 and 211,498 is: 291,858.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,645.88 : 514,235.85 = 211,498 : x
  2. Step 2: Convert to fraction form
    372,645.88/514,235.85 = 211,498/x
  3. Step 3: Cross multiply
    372,645.88x = 514,235.85 × 211,498
  4. Step 4: Simplify right side
    372,645.88x = 108,759,853,803.30
  5. Step 5: Solve for x
    x = 108,759,853,803.30/372,645.88
  6. Step 6: Final answer
    x = 291,858.46

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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.