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Finding the Fourth Proportional to 281,404.63, 388,336.60 and 152,342.16

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Solution

The fourth proportional to 281,404.63, 388,336.60 and 152,342.16 is: 210,231.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,404.63 : 388,336.60 = 152,342.16 : x
  2. Step 2: Convert to fraction form
    281,404.63/388,336.60 = 152,342.16/x
  3. Step 3: Cross multiply
    281,404.63x = 388,336.60 × 152,342.16
  4. Step 4: Simplify right side
    281,404.63x = 59,160,036,451.06
  5. Step 5: Solve for x
    x = 59,160,036,451.06/281,404.63
  6. Step 6: Final answer
    x = 210,231.21

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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.