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Finding the Fourth Proportional to 243,228.09, 335,629.29 and 141,233.67

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Solution

The fourth proportional to 243,228.09, 335,629.29 and 141,233.67 is: 194,887.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,228.09 : 335,629.29 = 141,233.67 : x
  2. Step 2: Convert to fraction form
    243,228.09/335,629.29 = 141,233.67/x
  3. Step 3: Cross multiply
    243,228.09x = 335,629.29 × 141,233.67
  4. Step 4: Simplify right side
    243,228.09x = 47,402,156,386.19
  5. Step 5: Solve for x
    x = 47,402,156,386.19/243,228.09
  6. Step 6: Final answer
    x = 194,887.67

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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.