Home / 286,248.09-395,006.94-158,915.49

Finding the Fourth Proportional to 286,248.09, 395,006.94 and 158,915.49

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Solution

The fourth proportional to 286,248.09, 395,006.94 and 158,915.49 is: 219,294.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,248.09 : 395,006.94 = 158,915.49 : x
  2. Step 2: Convert to fraction form
    286,248.09/395,006.94 = 158,915.49/x
  3. Step 3: Cross multiply
    286,248.09x = 395,006.94 × 158,915.49
  4. Step 4: Simplify right side
    286,248.09x = 62,772,721,423.50
  5. Step 5: Solve for x
    x = 62,772,721,423.50/286,248.09
  6. Step 6: Final answer
    x = 219,294.81

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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.