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Finding the Fourth Proportional to 243,353.40, 335,837.25 and 141,377.64

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Solution

The fourth proportional to 243,353.40, 335,837.25 and 141,377.64 is: 195,106.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,353.40 : 335,837.25 = 141,377.64 : x
  2. Step 2: Convert to fraction form
    243,353.40/335,837.25 = 141,377.64/x
  3. Step 3: Cross multiply
    243,353.40x = 335,837.25 × 141,377.64
  4. Step 4: Simplify right side
    243,353.40x = 47,479,877,829.09
  5. Step 5: Solve for x
    x = 47,479,877,829.09/243,353.40
  6. Step 6: Final answer
    x = 195,106.70

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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.