Home / 278,093.04-416,818.26-128,018.67

Finding the Fourth Proportional to 278,093.04, 416,818.26 and 128,018.67

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Solution

The fourth proportional to 278,093.04, 416,818.26 and 128,018.67 is: 191,880.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,093.04 : 416,818.26 = 128,018.67 : x
  2. Step 2: Convert to fraction form
    278,093.04/416,818.26 = 128,018.67/x
  3. Step 3: Cross multiply
    278,093.04x = 416,818.26 × 128,018.67
  4. Step 4: Simplify right side
    278,093.04x = 53,360,519,276.91
  5. Step 5: Solve for x
    x = 53,360,519,276.91/278,093.04
  6. Step 6: Final answer
    x = 191,880.10

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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.