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Finding the Fourth Proportional to 384,777.90, 577,166.85 and 225,345.60

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Solution

The fourth proportional to 384,777.90, 577,166.85 and 225,345.60 is: 338,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,777.90 : 577,166.85 = 225,345.60 : x
  2. Step 2: Convert to fraction form
    384,777.90/577,166.85 = 225,345.60/x
  3. Step 3: Cross multiply
    384,777.90x = 577,166.85 × 225,345.60
  4. Step 4: Simplify right side
    384,777.90x = 130,062,010,113.36
  5. Step 5: Solve for x
    x = 130,062,010,113.36/384,777.90
  6. Step 6: Final answer
    x = 338,018.40

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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.