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Finding the Fourth Proportional to 281,025.52, 387,824.58 and 153,701.12

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Solution

The fourth proportional to 281,025.52, 387,824.58 and 153,701.12 is: 212,112.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,025.52 : 387,824.58 = 153,701.12 : x
  2. Step 2: Convert to fraction form
    281,025.52/387,824.58 = 153,701.12/x
  3. Step 3: Cross multiply
    281,025.52x = 387,824.58 × 153,701.12
  4. Step 4: Simplify right side
    281,025.52x = 59,609,073,279.09
  5. Step 5: Solve for x
    x = 59,609,073,279.09/281,025.52
  6. Step 6: Final answer
    x = 212,112.67

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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.