Home / 283,021.56-390,575.52-155,697.12

Finding the Fourth Proportional to 283,021.56, 390,575.52 and 155,697.12

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Solution

The fourth proportional to 283,021.56, 390,575.52 and 155,697.12 is: 214,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,021.56 : 390,575.52 = 155,697.12 : x
  2. Step 2: Convert to fraction form
    283,021.56/390,575.52 = 155,697.12/x
  3. Step 3: Cross multiply
    283,021.56x = 390,575.52 × 155,697.12
  4. Step 4: Simplify right side
    283,021.56x = 60,811,483,606.50
  5. Step 5: Solve for x
    x = 60,811,483,606.50/283,021.56
  6. Step 6: Final answer
    x = 214,865.20

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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.