Home / 206,430.79-309,646.66-56,673.13

Finding the Fourth Proportional to 206,430.79, 309,646.66 and 56,673.13

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Solution

The fourth proportional to 206,430.79, 309,646.66 and 56,673.13 is: 85,009.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,430.79 : 309,646.66 = 56,673.13 : x
  2. Step 2: Convert to fraction form
    206,430.79/309,646.66 = 56,673.13/x
  3. Step 3: Cross multiply
    206,430.79x = 309,646.66 × 56,673.13
  4. Step 4: Simplify right side
    206,430.79x = 17,548,645,416.25
  5. Step 5: Solve for x
    x = 17,548,645,416.25/206,430.79
  6. Step 6: Final answer
    x = 85,009.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.