Home / 291,899.86-402,821.63-157,763.86

Finding the Fourth Proportional to 291,899.86, 402,821.63 and 157,763.86

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Solution

The fourth proportional to 291,899.86, 402,821.63 and 157,763.86 is: 217,714.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,899.86 : 402,821.63 = 157,763.86 : x
  2. Step 2: Convert to fraction form
    291,899.86/402,821.63 = 157,763.86/x
  3. Step 3: Cross multiply
    291,899.86x = 402,821.63 × 157,763.86
  4. Step 4: Simplify right side
    291,899.86x = 63,550,694,145.15
  5. Step 5: Solve for x
    x = 63,550,694,145.15/291,899.86
  6. Step 6: Final answer
    x = 217,714.03

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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.