Home / 313,869.12-470,173.32-145,152.96

Finding the Fourth Proportional to 313,869.12, 470,173.32 and 145,152.96

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Solution

The fourth proportional to 313,869.12, 470,173.32 and 145,152.96 is: 217,437.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,869.12 : 470,173.32 = 145,152.96 : x
  2. Step 2: Convert to fraction form
    313,869.12/470,173.32 = 145,152.96/x
  3. Step 3: Cross multiply
    313,869.12x = 470,173.32 × 145,152.96
  4. Step 4: Simplify right side
    313,869.12x = 68,247,049,111.03
  5. Step 5: Solve for x
    x = 68,247,049,111.03/313,869.12
  6. Step 6: Final answer
    x = 217,437.92

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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.