Home / 281,562.34-388,556.08-154,242.46

Finding the Fourth Proportional to 281,562.34, 388,556.08 and 154,242.46

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Solution

The fourth proportional to 281,562.34, 388,556.08 and 154,242.46 is: 212,854.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,562.34 : 388,556.08 = 154,242.46 : x
  2. Step 2: Convert to fraction form
    281,562.34/388,556.08 = 154,242.46/x
  3. Step 3: Cross multiply
    281,562.34x = 388,556.08 × 154,242.46
  4. Step 4: Simplify right side
    281,562.34x = 59,931,845,627.16
  5. Step 5: Solve for x
    x = 59,931,845,627.16/281,562.34
  6. Step 6: Final answer
    x = 212,854.62

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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.