Home / 286,742.44-395,714.51-157,686.20

Finding the Fourth Proportional to 286,742.44, 395,714.51 and 157,686.20

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Solution

The fourth proportional to 286,742.44, 395,714.51 and 157,686.20 is: 217,612.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,742.44 : 395,714.51 = 157,686.20 : x
  2. Step 2: Convert to fraction form
    286,742.44/395,714.51 = 157,686.20/x
  3. Step 3: Cross multiply
    286,742.44x = 395,714.51 × 157,686.20
  4. Step 4: Simplify right side
    286,742.44x = 62,398,717,366.76
  5. Step 5: Solve for x
    x = 62,398,717,366.76/286,742.44
  6. Step 6: Final answer
    x = 217,612.42

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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.