Home / 377,820.04-521,380.26-208,055.08

Finding the Fourth Proportional to 377,820.04, 521,380.26 and 208,055.08

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Solution

The fourth proportional to 377,820.04, 521,380.26 and 208,055.08 is: 287,109.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,820.04 : 521,380.26 = 208,055.08 : x
  2. Step 2: Convert to fraction form
    377,820.04/521,380.26 = 208,055.08/x
  3. Step 3: Cross multiply
    377,820.04x = 521,380.26 × 208,055.08
  4. Step 4: Simplify right side
    377,820.04x = 108,475,811,704.72
  5. Step 5: Solve for x
    x = 108,475,811,704.72/377,820.04
  6. Step 6: Final answer
    x = 287,109.74

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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.