Home / 286,420.68-395,260.34-159,108.12

Finding the Fourth Proportional to 286,420.68, 395,260.34 and 159,108.12

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Solution

The fourth proportional to 286,420.68, 395,260.34 and 159,108.12 is: 219,569.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,420.68 : 395,260.34 = 159,108.12 : x
  2. Step 2: Convert to fraction form
    286,420.68/395,260.34 = 159,108.12/x
  3. Step 3: Cross multiply
    286,420.68x = 395,260.34 × 159,108.12
  4. Step 4: Simplify right side
    286,420.68x = 62,889,129,607.96
  5. Step 5: Solve for x
    x = 62,889,129,607.96/286,420.68
  6. Step 6: Final answer
    x = 219,569.10

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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.