Home / 305,626.68-458,618.40-128,120.04

Finding the Fourth Proportional to 305,626.68, 458,618.40 and 128,120.04

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Solution

The fourth proportional to 305,626.68, 458,618.40 and 128,120.04 is: 192,254.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,626.68 : 458,618.40 = 128,120.04 : x
  2. Step 2: Convert to fraction form
    305,626.68/458,618.40 = 128,120.04/x
  3. Step 3: Cross multiply
    305,626.68x = 458,618.40 × 128,120.04
  4. Step 4: Simplify right side
    305,626.68x = 58,758,207,752.74
  5. Step 5: Solve for x
    x = 58,758,207,752.74/305,626.68
  6. Step 6: Final answer
    x = 192,254.84

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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.