Home / 278,708.04-384,626.88-157,852.80

Finding the Fourth Proportional to 278,708.04, 384,626.88 and 157,852.80

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Solution

The fourth proportional to 278,708.04, 384,626.88 and 157,852.80 is: 217,842.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,708.04 : 384,626.88 = 157,852.80 : x
  2. Step 2: Convert to fraction form
    278,708.04/384,626.88 = 157,852.80/x
  3. Step 3: Cross multiply
    278,708.04x = 384,626.88 × 157,852.80
  4. Step 4: Simplify right side
    278,708.04x = 60,714,429,963.26
  5. Step 5: Solve for x
    x = 60,714,429,963.26/278,708.04
  6. Step 6: Final answer
    x = 217,842.41

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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.