Home / 389,736.96-537,836.16-210,888.96

Finding the Fourth Proportional to 389,736.96, 537,836.16 and 210,888.96

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Solution

The fourth proportional to 389,736.96, 537,836.16 and 210,888.96 is: 291,026.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,736.96 : 537,836.16 = 210,888.96 : x
  2. Step 2: Convert to fraction form
    389,736.96/537,836.16 = 210,888.96/x
  3. Step 3: Cross multiply
    389,736.96x = 537,836.16 × 210,888.96
  4. Step 4: Simplify right side
    389,736.96x = 113,423,708,432.79
  5. Step 5: Solve for x
    x = 113,423,708,432.79/389,736.96
  6. Step 6: Final answer
    x = 291,026.31

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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.