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Finding the Fourth Proportional to 243,571.68, 336,113.64 and 134,673.21

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Solution

The fourth proportional to 243,571.68, 336,113.64 and 134,673.21 is: 185,840.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,571.68 : 336,113.64 = 134,673.21 : x
  2. Step 2: Convert to fraction form
    243,571.68/336,113.64 = 134,673.21/x
  3. Step 3: Cross multiply
    243,571.68x = 336,113.64 × 134,673.21
  4. Step 4: Simplify right side
    243,571.68x = 45,265,502,823.58
  5. Step 5: Solve for x
    x = 45,265,502,823.58/243,571.68
  6. Step 6: Final answer
    x = 185,840.58

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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.