Home / 283,277.34-390,907.89-155,928.06

Finding the Fourth Proportional to 283,277.34, 390,907.89 and 155,928.06

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Solution

The fourth proportional to 283,277.34, 390,907.89 and 155,928.06 is: 215,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,277.34 : 390,907.89 = 155,928.06 : x
  2. Step 2: Convert to fraction form
    283,277.34/390,907.89 = 155,928.06/x
  3. Step 3: Cross multiply
    283,277.34x = 390,907.89 × 155,928.06
  4. Step 4: Simplify right side
    283,277.34x = 60,953,508,926.39
  5. Step 5: Solve for x
    x = 60,953,508,926.39/283,277.34
  6. Step 6: Final answer
    x = 215,172.55

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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.