Home / 289,318.40-433,999.20-102,305.60

Finding the Fourth Proportional to 289,318.40, 433,999.20 and 102,305.60

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Solution

The fourth proportional to 289,318.40, 433,999.20 and 102,305.60 is: 153,466.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,318.40 : 433,999.20 = 102,305.60 : x
  2. Step 2: Convert to fraction form
    289,318.40/433,999.20 = 102,305.60/x
  3. Step 3: Cross multiply
    289,318.40x = 433,999.20 × 102,305.60
  4. Step 4: Simplify right side
    289,318.40x = 44,400,548,555.52
  5. Step 5: Solve for x
    x = 44,400,548,555.52/289,318.40
  6. Step 6: Final answer
    x = 153,466.04

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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.