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Finding the Fourth Proportional to 286,572.60, 395,347.50 and 178,955.82

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Solution

The fourth proportional to 286,572.60, 395,347.50 and 178,955.82 is: 246,882.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,572.60 : 395,347.50 = 178,955.82 : x
  2. Step 2: Convert to fraction form
    286,572.60/395,347.50 = 178,955.82/x
  3. Step 3: Cross multiply
    286,572.60x = 395,347.50 × 178,955.82
  4. Step 4: Simplify right side
    286,572.60x = 70,749,736,047.45
  5. Step 5: Solve for x
    x = 70,749,736,047.45/286,572.60
  6. Step 6: Final answer
    x = 246,882.42

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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.