Home / 285,018.49-393,230.01-164,157.36

Finding the Fourth Proportional to 285,018.49, 393,230.01 and 164,157.36

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Solution

The fourth proportional to 285,018.49, 393,230.01 and 164,157.36 is: 226,482.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,018.49 : 393,230.01 = 164,157.36 : x
  2. Step 2: Convert to fraction form
    285,018.49/393,230.01 = 164,157.36/x
  3. Step 3: Cross multiply
    285,018.49x = 393,230.01 × 164,157.36
  4. Step 4: Simplify right side
    285,018.49x = 64,551,600,314.37
  5. Step 5: Solve for x
    x = 64,551,600,314.37/285,018.49
  6. Step 6: Final answer
    x = 226,482.15

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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.