Home / 377,996.23-521,610-208,230.34

Finding the Fourth Proportional to 377,996.23, 521,610 and 208,230.34

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Solution

The fourth proportional to 377,996.23, 521,610 and 208,230.34 is: 287,344.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,996.23 : 521,610 = 208,230.34 : x
  2. Step 2: Convert to fraction form
    377,996.23/521,610 = 208,230.34/x
  3. Step 3: Cross multiply
    377,996.23x = 521,610 × 208,230.34
  4. Step 4: Simplify right side
    377,996.23x = 108,615,027,647.40
  5. Step 5: Solve for x
    x = 108,615,027,647.40/377,996.23
  6. Step 6: Final answer
    x = 287,344.21

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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.