Home / 281,160.76-388,001.22-153,836.08

Finding the Fourth Proportional to 281,160.76, 388,001.22 and 153,836.08

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Solution

The fourth proportional to 281,160.76, 388,001.22 and 153,836.08 is: 212,293.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,160.76 : 388,001.22 = 153,836.08 : x
  2. Step 2: Convert to fraction form
    281,160.76/388,001.22 = 153,836.08/x
  3. Step 3: Cross multiply
    281,160.76x = 388,001.22 × 153,836.08
  4. Step 4: Simplify right side
    281,160.76x = 59,688,586,720.02
  5. Step 5: Solve for x
    x = 59,688,586,720.02/281,160.76
  6. Step 6: Final answer
    x = 212,293.45

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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.