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Finding the Fourth Proportional to 281,425.02, 388,367.16 and 152,364.90

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Solution

The fourth proportional to 281,425.02, 388,367.16 and 152,364.90 is: 210,263.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,425.02 : 388,367.16 = 152,364.90 : x
  2. Step 2: Convert to fraction form
    281,425.02/388,367.16 = 152,364.90/x
  3. Step 3: Cross multiply
    281,425.02x = 388,367.16 × 152,364.90
  4. Step 4: Simplify right side
    281,425.02x = 59,173,523,496.68
  5. Step 5: Solve for x
    x = 59,173,523,496.68/281,425.02
  6. Step 6: Final answer
    x = 210,263.90

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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.