Home / 278,074.04-383,741.16-155,566.70

Finding the Fourth Proportional to 278,074.04, 383,741.16 and 155,566.70

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Solution

The fourth proportional to 278,074.04, 383,741.16 and 155,566.70 is: 214,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,074.04 : 383,741.16 = 155,566.70 : x
  2. Step 2: Convert to fraction form
    278,074.04/383,741.16 = 155,566.70/x
  3. Step 3: Cross multiply
    278,074.04x = 383,741.16 × 155,566.70
  4. Step 4: Simplify right side
    278,074.04x = 59,697,345,915.37
  5. Step 5: Solve for x
    x = 59,697,345,915.37/278,074.04
  6. Step 6: Final answer
    x = 214,681.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.