Home / 377,739.81-521,312.63-208,005.93

Finding the Fourth Proportional to 377,739.81, 521,312.63 and 208,005.93

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Solution

The fourth proportional to 377,739.81, 521,312.63 and 208,005.93 is: 287,065.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,739.81 : 521,312.63 = 208,005.93 : x
  2. Step 2: Convert to fraction form
    377,739.81/521,312.63 = 208,005.93/x
  3. Step 3: Cross multiply
    377,739.81x = 521,312.63 × 208,005.93
  4. Step 4: Simplify right side
    377,739.81x = 108,436,117,383.87
  5. Step 5: Solve for x
    x = 108,436,117,383.87/377,739.81
  6. Step 6: Final answer
    x = 287,065.63

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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.