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Finding the Fourth Proportional to 202,047.01, 278,837.29 and 111,402.69

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Solution

The fourth proportional to 202,047.01, 278,837.29 and 111,402.69 is: 153,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,047.01 : 278,837.29 = 111,402.69 : x
  2. Step 2: Convert to fraction form
    202,047.01/278,837.29 = 111,402.69/x
  3. Step 3: Cross multiply
    202,047.01x = 278,837.29 × 111,402.69
  4. Step 4: Simplify right side
    202,047.01x = 31,063,224,213.74
  5. Step 5: Solve for x
    x = 31,063,224,213.74/202,047.01
  6. Step 6: Final answer
    x = 153,742.56

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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.