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Finding the Fourth Proportional to 243,121.82, 335,106.51 and 162,519.93

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Solution

The fourth proportional to 243,121.82, 335,106.51 and 162,519.93 is: 224,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,121.82 : 335,106.51 = 162,519.93 : x
  2. Step 2: Convert to fraction form
    243,121.82/335,106.51 = 162,519.93/x
  3. Step 3: Cross multiply
    243,121.82x = 335,106.51 × 162,519.93
  4. Step 4: Simplify right side
    243,121.82x = 54,461,486,547.74
  5. Step 5: Solve for x
    x = 54,461,486,547.74/243,121.82
  6. Step 6: Final answer
    x = 224,009.05

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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.