Home / 377,775.48-521,333.64-208,015.68

Finding the Fourth Proportional to 377,775.48, 521,333.64 and 208,015.68

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Solution

The fourth proportional to 377,775.48, 521,333.64 and 208,015.68 is: 287,063.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,775.48 : 521,333.64 = 208,015.68 : x
  2. Step 2: Convert to fraction form
    377,775.48/521,333.64 = 208,015.68/x
  3. Step 3: Cross multiply
    377,775.48x = 521,333.64 × 208,015.68
  4. Step 4: Simplify right side
    377,775.48x = 108,445,571,631.48
  5. Step 5: Solve for x
    x = 108,445,571,631.48/377,775.48
  6. Step 6: Final answer
    x = 287,063.55

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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.