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Finding the Fourth Proportional to 357,488.55, 493,337.12 and 196,345.53

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Solution

The fourth proportional to 357,488.55, 493,337.12 and 196,345.53 is: 270,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,488.55 : 493,337.12 = 196,345.53 : x
  2. Step 2: Convert to fraction form
    357,488.55/493,337.12 = 196,345.53/x
  3. Step 3: Cross multiply
    357,488.55x = 493,337.12 × 196,345.53
  4. Step 4: Simplify right side
    357,488.55x = 96,864,537,313.35
  5. Step 5: Solve for x
    x = 96,864,537,313.35/357,488.55
  6. Step 6: Final answer
    x = 270,958.43

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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.