Home / 306,391.13-459,586.01-145,980.15

Finding the Fourth Proportional to 306,391.13, 459,586.01 and 145,980.15

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Solution

The fourth proportional to 306,391.13, 459,586.01 and 145,980.15 is: 218,969.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,391.13 : 459,586.01 = 145,980.15 : x
  2. Step 2: Convert to fraction form
    306,391.13/459,586.01 = 145,980.15/x
  3. Step 3: Cross multiply
    306,391.13x = 459,586.01 × 145,980.15
  4. Step 4: Simplify right side
    306,391.13x = 67,090,434,677.70
  5. Step 5: Solve for x
    x = 67,090,434,677.70/306,391.13
  6. Step 6: Final answer
    x = 218,969.90

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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.