Home / 353,015.12-487,163.76-191,870.22

Finding the Fourth Proportional to 353,015.12, 487,163.76 and 191,870.22

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Solution

The fourth proportional to 353,015.12, 487,163.76 and 191,870.22 is: 264,782.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,015.12 : 487,163.76 = 191,870.22 : x
  2. Step 2: Convert to fraction form
    353,015.12/487,163.76 = 191,870.22/x
  3. Step 3: Cross multiply
    353,015.12x = 487,163.76 × 191,870.22
  4. Step 4: Simplify right side
    353,015.12x = 93,472,217,807.23
  5. Step 5: Solve for x
    x = 93,472,217,807.23/353,015.12
  6. Step 6: Final answer
    x = 264,782.48

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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.