Home / 309,718.45-427,594.68-195,095.35

Finding the Fourth Proportional to 309,718.45, 427,594.68 and 195,095.35

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Solution

The fourth proportional to 309,718.45, 427,594.68 and 195,095.35 is: 269,346.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,718.45 : 427,594.68 = 195,095.35 : x
  2. Step 2: Convert to fraction form
    309,718.45/427,594.68 = 195,095.35/x
  3. Step 3: Cross multiply
    309,718.45x = 427,594.68 × 195,095.35
  4. Step 4: Simplify right side
    309,718.45x = 83,421,733,752.74
  5. Step 5: Solve for x
    x = 83,421,733,752.74/309,718.45
  6. Step 6: Final answer
    x = 269,346.99

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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.