Home / 353,117.82-487,312.02-191,983.72

Finding the Fourth Proportional to 353,117.82, 487,312.02 and 191,983.72

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Solution

The fourth proportional to 353,117.82, 487,312.02 and 191,983.72 is: 264,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,117.82 : 487,312.02 = 191,983.72 : x
  2. Step 2: Convert to fraction form
    353,117.82/487,312.02 = 191,983.72/x
  3. Step 3: Cross multiply
    353,117.82x = 487,312.02 × 191,983.72
  4. Step 4: Simplify right side
    353,117.82x = 93,555,974,400.31
  5. Step 5: Solve for x
    x = 93,555,974,400.31/353,117.82
  6. Step 6: Final answer
    x = 264,942.66

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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.