Home / 306,311.29-459,406.36-291,121.15

Finding the Fourth Proportional to 306,311.29, 459,406.36 and 291,121.15

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Solution

The fourth proportional to 306,311.29, 459,406.36 and 291,121.15 is: 436,624.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,311.29 : 459,406.36 = 291,121.15 : x
  2. Step 2: Convert to fraction form
    306,311.29/459,406.36 = 291,121.15/x
  3. Step 3: Cross multiply
    306,311.29x = 459,406.36 × 291,121.15
  4. Step 4: Simplify right side
    306,311.29x = 133,742,907,840.51
  5. Step 5: Solve for x
    x = 133,742,907,840.51/306,311.29
  6. Step 6: Final answer
    x = 436,624.15

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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.