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Finding the Fourth Proportional to 257,624.68, 355,527.76 and 142,899.59

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Solution

The fourth proportional to 257,624.68, 355,527.76 and 142,899.59 is: 197,204.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,624.68 : 355,527.76 = 142,899.59 : x
  2. Step 2: Convert to fraction form
    257,624.68/355,527.76 = 142,899.59/x
  3. Step 3: Cross multiply
    257,624.68x = 355,527.76 × 142,899.59
  4. Step 4: Simplify right side
    257,624.68x = 50,804,769,002.73
  5. Step 5: Solve for x
    x = 50,804,769,002.73/257,624.68
  6. Step 6: Final answer
    x = 197,204.59

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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.