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Finding the Fourth Proportional to 243,877.71, 336,564.32 and 136,441.32

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Solution

The fourth proportional to 243,877.71, 336,564.32 and 136,441.32 is: 188,296.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,877.71 : 336,564.32 = 136,441.32 : x
  2. Step 2: Convert to fraction form
    243,877.71/336,564.32 = 136,441.32/x
  3. Step 3: Cross multiply
    243,877.71x = 336,564.32 × 136,441.32
  4. Step 4: Simplify right side
    243,877.71x = 45,921,279,403.50
  5. Step 5: Solve for x
    x = 45,921,279,403.50/243,877.71
  6. Step 6: Final answer
    x = 188,296.34

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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.