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Finding the Fourth Proportional to 395,460.76, 545,759.76 and 242,516.56

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Solution

The fourth proportional to 395,460.76, 545,759.76 and 242,516.56 is: 334,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,460.76 : 545,759.76 = 242,516.56 : x
  2. Step 2: Convert to fraction form
    395,460.76/545,759.76 = 242,516.56/x
  3. Step 3: Cross multiply
    395,460.76x = 545,759.76 × 242,516.56
  4. Step 4: Simplify right side
    395,460.76x = 132,355,779,581.63
  5. Step 5: Solve for x
    x = 132,355,779,581.63/395,460.76
  6. Step 6: Final answer
    x = 334,687.52

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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.