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Finding the Fourth Proportional to 353,521.12, 487,858.22 and 192,376.12

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Solution

The fourth proportional to 353,521.12, 487,858.22 and 192,376.12 is: 265,478.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,521.12 : 487,858.22 = 192,376.12 : x
  2. Step 2: Convert to fraction form
    353,521.12/487,858.22 = 192,376.12/x
  3. Step 3: Cross multiply
    353,521.12x = 487,858.22 × 192,376.12
  4. Step 4: Simplify right side
    353,521.12x = 93,852,271,473.71
  5. Step 5: Solve for x
    x = 93,852,271,473.71/353,521.12
  6. Step 6: Final answer
    x = 265,478.54

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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.