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Finding the Fourth Proportional to 285,309.32, 427,803.90 and 195,453.58

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Solution

The fourth proportional to 285,309.32, 427,803.90 and 195,453.58 is: 293,070.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,309.32 : 427,803.90 = 195,453.58 : x
  2. Step 2: Convert to fraction form
    285,309.32/427,803.90 = 195,453.58/x
  3. Step 3: Cross multiply
    285,309.32x = 427,803.90 × 195,453.58
  4. Step 4: Simplify right side
    285,309.32x = 83,615,803,792.96
  5. Step 5: Solve for x
    x = 83,615,803,792.96/285,309.32
  6. Step 6: Final answer
    x = 293,070.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.