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Finding the Fourth Proportional to 286,783, 395,741.82 and 159,454.04

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Solution

The fourth proportional to 286,783, 395,741.82 and 159,454.04 is: 220,036.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,783 : 395,741.82 = 159,454.04 : x
  2. Step 2: Convert to fraction form
    286,783/395,741.82 = 159,454.04/x
  3. Step 3: Cross multiply
    286,783x = 395,741.82 × 159,454.04
  4. Step 4: Simplify right side
    286,783x = 63,102,631,995.95
  5. Step 5: Solve for x
    x = 63,102,631,995.95/286,783
  6. Step 6: Final answer
    x = 220,036.17

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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.