Home / 257,191.40-385,556.70-168,487.40

Finding the Fourth Proportional to 257,191.40, 385,556.70 and 168,487.40

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Solution

The fourth proportional to 257,191.40, 385,556.70 and 168,487.40 is: 252,580.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,191.40 : 385,556.70 = 168,487.40 : x
  2. Step 2: Convert to fraction form
    257,191.40/385,556.70 = 168,487.40/x
  3. Step 3: Cross multiply
    257,191.40x = 385,556.70 × 168,487.40
  4. Step 4: Simplify right side
    257,191.40x = 64,961,445,935.58
  5. Step 5: Solve for x
    x = 64,961,445,935.58/257,191.40
  6. Step 6: Final answer
    x = 252,580.16

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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.