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Finding the Fourth Proportional to 255,734.40, 357,561.60 and 255,734.40

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Solution

The fourth proportional to 255,734.40, 357,561.60 and 255,734.40 is: 357,561.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,734.40 : 357,561.60 = 255,734.40 : x
  2. Step 2: Convert to fraction form
    255,734.40/357,561.60 = 255,734.40/x
  3. Step 3: Cross multiply
    255,734.40x = 357,561.60 × 255,734.40
  4. Step 4: Simplify right side
    255,734.40x = 91,440,801,239.04
  5. Step 5: Solve for x
    x = 91,440,801,239.04/255,734.40
  6. Step 6: Final answer
    x = 357,561.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.