Home / 278,461.96-384,277.92-151,137.60

Finding the Fourth Proportional to 278,461.96, 384,277.92 and 151,137.60

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Solution

The fourth proportional to 278,461.96, 384,277.92 and 151,137.60 is: 208,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,461.96 : 384,277.92 = 151,137.60 : x
  2. Step 2: Convert to fraction form
    278,461.96/384,277.92 = 151,137.60/x
  3. Step 3: Cross multiply
    278,461.96x = 384,277.92 × 151,137.60
  4. Step 4: Simplify right side
    278,461.96x = 58,078,842,561.79
  5. Step 5: Solve for x
    x = 58,078,842,561.79/278,461.96
  6. Step 6: Final answer
    x = 208,570.11

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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.