Home / 231,631.60-347,447.40-163,980.40

Finding the Fourth Proportional to 231,631.60, 347,447.40 and 163,980.40

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Solution

The fourth proportional to 231,631.60, 347,447.40 and 163,980.40 is: 245,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,631.60 : 347,447.40 = 163,980.40 : x
  2. Step 2: Convert to fraction form
    231,631.60/347,447.40 = 163,980.40/x
  3. Step 3: Cross multiply
    231,631.60x = 347,447.40 × 163,980.40
  4. Step 4: Simplify right side
    231,631.60x = 56,974,563,630.96
  5. Step 5: Solve for x
    x = 56,974,563,630.96/231,631.60
  6. Step 6: Final answer
    x = 245,970.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.