Home / 306,005.10-459,007.65-221,586.90

Finding the Fourth Proportional to 306,005.10, 459,007.65 and 221,586.90

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Solution

The fourth proportional to 306,005.10, 459,007.65 and 221,586.90 is: 332,380.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,005.10 : 459,007.65 = 221,586.90 : x
  2. Step 2: Convert to fraction form
    306,005.10/459,007.65 = 221,586.90/x
  3. Step 3: Cross multiply
    306,005.10x = 459,007.65 × 221,586.90
  4. Step 4: Simplify right side
    306,005.10x = 101,710,082,239.79
  5. Step 5: Solve for x
    x = 101,710,082,239.79/306,005.10
  6. Step 6: Final answer
    x = 332,380.35

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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.