Home / 281,019.12-387,816.48-160,178.64

Finding the Fourth Proportional to 281,019.12, 387,816.48 and 160,178.64

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Solution

The fourth proportional to 281,019.12, 387,816.48 and 160,178.64 is: 221,052.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,019.12 : 387,816.48 = 160,178.64 : x
  2. Step 2: Convert to fraction form
    281,019.12/387,816.48 = 160,178.64/x
  3. Step 3: Cross multiply
    281,019.12x = 387,816.48 × 160,178.64
  4. Step 4: Simplify right side
    281,019.12x = 62,119,916,335.99
  5. Step 5: Solve for x
    x = 62,119,916,335.99/281,019.12
  6. Step 6: Final answer
    x = 221,052.28

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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.