Home / 291,900.15-402,821.96-157,764.15

Finding the Fourth Proportional to 291,900.15, 402,821.96 and 157,764.15

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Solution

The fourth proportional to 291,900.15, 402,821.96 and 157,764.15 is: 217,714.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,900.15 : 402,821.96 = 157,764.15 : x
  2. Step 2: Convert to fraction form
    291,900.15/402,821.96 = 157,764.15/x
  3. Step 3: Cross multiply
    291,900.15x = 402,821.96 × 157,764.15
  4. Step 4: Simplify right side
    291,900.15x = 63,550,864,120.73
  5. Step 5: Solve for x
    x = 63,550,864,120.73/291,900.15
  6. Step 6: Final answer
    x = 217,714.39

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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.