Home / 283,146.22-390,741.84-155,821.81

Finding the Fourth Proportional to 283,146.22, 390,741.84 and 155,821.81

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Solution

The fourth proportional to 283,146.22, 390,741.84 and 155,821.81 is: 215,034.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,146.22 : 390,741.84 = 155,821.81 : x
  2. Step 2: Convert to fraction form
    283,146.22/390,741.84 = 155,821.81/x
  3. Step 3: Cross multiply
    283,146.22x = 390,741.84 × 155,821.81
  4. Step 4: Simplify right side
    283,146.22x = 60,886,101,498.39
  5. Step 5: Solve for x
    x = 60,886,101,498.39/283,146.22
  6. Step 6: Final answer
    x = 215,034.13

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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.