Home / 280,861.04-421,291.48-112,457.20

Finding the Fourth Proportional to 280,861.04, 421,291.48 and 112,457.20

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Solution

The fourth proportional to 280,861.04, 421,291.48 and 112,457.20 is: 168,685.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,861.04 : 421,291.48 = 112,457.20 : x
  2. Step 2: Convert to fraction form
    280,861.04/421,291.48 = 112,457.20/x
  3. Step 3: Cross multiply
    280,861.04x = 421,291.48 × 112,457.20
  4. Step 4: Simplify right side
    280,861.04x = 47,377,260,224.66
  5. Step 5: Solve for x
    x = 47,377,260,224.66/280,861.04
  6. Step 6: Final answer
    x = 168,685.77

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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.