Home / 389,823-537,956.04-210,975

Finding the Fourth Proportional to 389,823, 537,956.04 and 210,975

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Solution

The fourth proportional to 389,823, 537,956.04 and 210,975 is: 291,145.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,823 : 537,956.04 = 210,975 : x
  2. Step 2: Convert to fraction form
    389,823/537,956.04 = 210,975/x
  3. Step 3: Cross multiply
    389,823x = 537,956.04 × 210,975
  4. Step 4: Simplify right side
    389,823x = 113,495,275,539.00
  5. Step 5: Solve for x
    x = 113,495,275,539.00/389,823
  6. Step 6: Final answer
    x = 291,145.66

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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.