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Finding the Fourth Proportional to 260,455.88, 390,417.40 and 176,224.94

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Solution

The fourth proportional to 260,455.88, 390,417.40 and 176,224.94 is: 264,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,455.88 : 390,417.40 = 176,224.94 : x
  2. Step 2: Convert to fraction form
    260,455.88/390,417.40 = 176,224.94/x
  3. Step 3: Cross multiply
    260,455.88x = 390,417.40 × 176,224.94
  4. Step 4: Simplify right side
    260,455.88x = 68,801,282,889.96
  5. Step 5: Solve for x
    x = 68,801,282,889.96/260,455.88
  6. Step 6: Final answer
    x = 264,157.15

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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.