Home / 283,228.40-390,823.12-166,934.28

Finding the Fourth Proportional to 283,228.40, 390,823.12 and 166,934.28

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Solution

The fourth proportional to 283,228.40, 390,823.12 and 166,934.28 is: 230,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,228.40 : 390,823.12 = 166,934.28 : x
  2. Step 2: Convert to fraction form
    283,228.40/390,823.12 = 166,934.28/x
  3. Step 3: Cross multiply
    283,228.40x = 390,823.12 × 166,934.28
  4. Step 4: Simplify right side
    283,228.40x = 65,241,776,144.55
  5. Step 5: Solve for x
    x = 65,241,776,144.55/283,228.40
  6. Step 6: Final answer
    x = 230,350.40

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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.