Home / 286,549.28-395,420.64-159,220.52

Finding the Fourth Proportional to 286,549.28, 395,420.64 and 159,220.52

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Solution

The fourth proportional to 286,549.28, 395,420.64 and 159,220.52 is: 219,714.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,549.28 : 395,420.64 = 159,220.52 : x
  2. Step 2: Convert to fraction form
    286,549.28/395,420.64 = 159,220.52/x
  3. Step 3: Cross multiply
    286,549.28x = 395,420.64 × 159,220.52
  4. Step 4: Simplify right side
    286,549.28x = 62,959,079,919.53
  5. Step 5: Solve for x
    x = 62,959,079,919.53/286,549.28
  6. Step 6: Final answer
    x = 219,714.67

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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.