Home / 281,193.31-387,901.47-190,518.27

Finding the Fourth Proportional to 281,193.31, 387,901.47 and 190,518.27

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Solution

The fourth proportional to 281,193.31, 387,901.47 and 190,518.27 is: 262,816.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,193.31 : 387,901.47 = 190,518.27 : x
  2. Step 2: Convert to fraction form
    281,193.31/387,901.47 = 190,518.27/x
  3. Step 3: Cross multiply
    281,193.31x = 387,901.47 × 190,518.27
  4. Step 4: Simplify right side
    281,193.31x = 73,902,316,994.86
  5. Step 5: Solve for x
    x = 73,902,316,994.86/281,193.31
  6. Step 6: Final answer
    x = 262,816.77

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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.