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Finding the Fourth Proportional to 281,506.50, 388,480.01 and 152,445.03

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Solution

The fourth proportional to 281,506.50, 388,480.01 and 152,445.03 is: 210,374.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,506.50 : 388,480.01 = 152,445.03 : x
  2. Step 2: Convert to fraction form
    281,506.50/388,480.01 = 152,445.03/x
  3. Step 3: Cross multiply
    281,506.50x = 388,480.01 × 152,445.03
  4. Step 4: Simplify right side
    281,506.50x = 59,221,846,016.63
  5. Step 5: Solve for x
    x = 59,221,846,016.63/281,506.50
  6. Step 6: Final answer
    x = 210,374.70

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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.