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Finding the Fourth Proportional to 286,812.51, 395,801.59 and 159,485.37

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Solution

The fourth proportional to 286,812.51, 395,801.59 and 159,485.37 is: 220,089.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,812.51 : 395,801.59 = 159,485.37 : x
  2. Step 2: Convert to fraction form
    286,812.51/395,801.59 = 159,485.37/x
  3. Step 3: Cross multiply
    286,812.51x = 395,801.59 × 159,485.37
  4. Step 4: Simplify right side
    286,812.51x = 63,124,563,027.74
  5. Step 5: Solve for x
    x = 63,124,563,027.74/286,812.51
  6. Step 6: Final answer
    x = 220,089.99

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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.