Home / 306,440.19-459,658.76-78,735.60

Finding the Fourth Proportional to 306,440.19, 459,658.76 and 78,735.60

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Solution

The fourth proportional to 306,440.19, 459,658.76 and 78,735.60 is: 118,103.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,440.19 : 459,658.76 = 78,735.60 : x
  2. Step 2: Convert to fraction form
    306,440.19/459,658.76 = 78,735.60/x
  3. Step 3: Cross multiply
    306,440.19x = 459,658.76 × 78,735.60
  4. Step 4: Simplify right side
    306,440.19x = 36,191,507,870.18
  5. Step 5: Solve for x
    x = 36,191,507,870.18/306,440.19
  6. Step 6: Final answer
    x = 118,103.01

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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.