Home / 281,547.08-388,535.04-154,227.20

Finding the Fourth Proportional to 281,547.08, 388,535.04 and 154,227.20

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Solution

The fourth proportional to 281,547.08, 388,535.04 and 154,227.20 is: 212,833.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,547.08 : 388,535.04 = 154,227.20 : x
  2. Step 2: Convert to fraction form
    281,547.08/388,535.04 = 154,227.20/x
  3. Step 3: Cross multiply
    281,547.08x = 388,535.04 × 154,227.20
  4. Step 4: Simplify right side
    281,547.08x = 59,922,671,321.09
  5. Step 5: Solve for x
    x = 59,922,671,321.09/281,547.08
  6. Step 6: Final answer
    x = 212,833.57

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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.