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Finding the Fourth Proportional to 286,342.95, 395,153.94 and 159,018.58

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Solution

The fourth proportional to 286,342.95, 395,153.94 and 159,018.58 is: 219,446.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,342.95 : 395,153.94 = 159,018.58 : x
  2. Step 2: Convert to fraction form
    286,342.95/395,153.94 = 159,018.58/x
  3. Step 3: Cross multiply
    286,342.95x = 395,153.94 × 159,018.58
  4. Step 4: Simplify right side
    286,342.95x = 62,836,818,420.21
  5. Step 5: Solve for x
    x = 62,836,818,420.21/286,342.95
  6. Step 6: Final answer
    x = 219,446.01

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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.