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Finding the Fourth Proportional to 283,123.88, 390,727.08 and 162,285.26

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Solution

The fourth proportional to 283,123.88, 390,727.08 and 162,285.26 is: 223,962.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,123.88 : 390,727.08 = 162,285.26 : x
  2. Step 2: Convert to fraction form
    283,123.88/390,727.08 = 162,285.26/x
  3. Step 3: Cross multiply
    283,123.88x = 390,727.08 × 162,285.26
  4. Step 4: Simplify right side
    283,123.88x = 63,409,245,766.84
  5. Step 5: Solve for x
    x = 63,409,245,766.84/283,123.88
  6. Step 6: Final answer
    x = 223,962.90

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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.