Home / 281,152.10-421,261.59-197,871.14

Finding the Fourth Proportional to 281,152.10, 421,261.59 and 197,871.14

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Solution

The fourth proportional to 281,152.10, 421,261.59 and 197,871.14 is: 296,478.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,152.10 : 421,261.59 = 197,871.14 : x
  2. Step 2: Convert to fraction form
    281,152.10/421,261.59 = 197,871.14/x
  3. Step 3: Cross multiply
    281,152.10x = 421,261.59 × 197,871.14
  4. Step 4: Simplify right side
    281,152.10x = 83,355,511,051.51
  5. Step 5: Solve for x
    x = 83,355,511,051.51/281,152.10
  6. Step 6: Final answer
    x = 296,478.35

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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.