Home / 377,813.16-521,385.66-208,048.50

Finding the Fourth Proportional to 377,813.16, 521,385.66 and 208,048.50

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Solution

The fourth proportional to 377,813.16, 521,385.66 and 208,048.50 is: 287,108.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,813.16 : 521,385.66 = 208,048.50 : x
  2. Step 2: Convert to fraction form
    377,813.16/521,385.66 = 208,048.50/x
  3. Step 3: Cross multiply
    377,813.16x = 521,385.66 × 208,048.50
  4. Step 4: Simplify right side
    377,813.16x = 108,473,504,484.51
  5. Step 5: Solve for x
    x = 108,473,504,484.51/377,813.16
  6. Step 6: Final answer
    x = 287,108.86

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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.