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Finding the Fourth Proportional to 357,578.32, 493,389.36 and 242,947.84

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Solution

The fourth proportional to 357,578.32, 493,389.36 and 242,947.84 is: 335,221.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,578.32 : 493,389.36 = 242,947.84 : x
  2. Step 2: Convert to fraction form
    357,578.32/493,389.36 = 242,947.84/x
  3. Step 3: Cross multiply
    357,578.32x = 493,389.36 × 242,947.84
  4. Step 4: Simplify right side
    357,578.32x = 119,867,879,290.98
  5. Step 5: Solve for x
    x = 119,867,879,290.98/357,578.32
  6. Step 6: Final answer
    x = 335,221.33

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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.