Home / 210,817.04-315,718.84-120,586.32

Finding the Fourth Proportional to 210,817.04, 315,718.84 and 120,586.32

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Solution

The fourth proportional to 210,817.04, 315,718.84 and 120,586.32 is: 180,589.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,817.04 : 315,718.84 = 120,586.32 : x
  2. Step 2: Convert to fraction form
    210,817.04/315,718.84 = 120,586.32/x
  3. Step 3: Cross multiply
    210,817.04x = 315,718.84 × 120,586.32
  4. Step 4: Simplify right side
    210,817.04x = 38,071,373,070.27
  5. Step 5: Solve for x
    x = 38,071,373,070.27/210,817.04
  6. Step 6: Final answer
    x = 180,589.64

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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.