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Finding the Fourth Proportional to 353,521.58, 487,870.05 and 192,387.02

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Solution

The fourth proportional to 353,521.58, 487,870.05 and 192,387.02 is: 265,499.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,521.58 : 487,870.05 = 192,387.02 : x
  2. Step 2: Convert to fraction form
    353,521.58/487,870.05 = 192,387.02/x
  3. Step 3: Cross multiply
    353,521.58x = 487,870.05 × 192,387.02
  4. Step 4: Simplify right side
    353,521.58x = 93,859,864,104.82
  5. Step 5: Solve for x
    x = 93,859,864,104.82/353,521.58
  6. Step 6: Final answer
    x = 265,499.67

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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.