Home / 306,389.13-459,583.01-145,978.15

Finding the Fourth Proportional to 306,389.13, 459,583.01 and 145,978.15

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Solution

The fourth proportional to 306,389.13, 459,583.01 and 145,978.15 is: 218,966.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,389.13 : 459,583.01 = 145,978.15 : x
  2. Step 2: Convert to fraction form
    306,389.13/459,583.01 = 145,978.15/x
  3. Step 3: Cross multiply
    306,389.13x = 459,583.01 × 145,978.15
  4. Step 4: Simplify right side
    306,389.13x = 67,089,077,922.65
  5. Step 5: Solve for x
    x = 67,089,077,922.65/306,389.13
  6. Step 6: Final answer
    x = 218,966.90

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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.