Home / 278,549.19-384,397.88-151,224.79

Finding the Fourth Proportional to 278,549.19, 384,397.88 and 151,224.79

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Solution

The fourth proportional to 278,549.19, 384,397.88 and 151,224.79 is: 208,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,549.19 : 384,397.88 = 151,224.79 : x
  2. Step 2: Convert to fraction form
    278,549.19/384,397.88 = 151,224.79/x
  3. Step 3: Cross multiply
    278,549.19x = 384,397.88 × 151,224.79
  4. Step 4: Simplify right side
    278,549.19x = 58,130,487,443.68
  5. Step 5: Solve for x
    x = 58,130,487,443.68/278,549.19
  6. Step 6: Final answer
    x = 208,690.20

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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.