Home / 281,386.68-388,313.55-154,062.24

Finding the Fourth Proportional to 281,386.68, 388,313.55 and 154,062.24

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Solution

The fourth proportional to 281,386.68, 388,313.55 and 154,062.24 is: 212,605.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,386.68 : 388,313.55 = 154,062.24 : x
  2. Step 2: Convert to fraction form
    281,386.68/388,313.55 = 154,062.24/x
  3. Step 3: Cross multiply
    281,386.68x = 388,313.55 × 154,062.24
  4. Step 4: Simplify right side
    281,386.68x = 59,824,455,335.35
  5. Step 5: Solve for x
    x = 59,824,455,335.35/281,386.68
  6. Step 6: Final answer
    x = 212,605.85

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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.