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Finding the Fourth Proportional to 342,341.04, 472,421.80 and 189,375.24

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Solution

The fourth proportional to 342,341.04, 472,421.80 and 189,375.24 is: 261,332.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,341.04 : 472,421.80 = 189,375.24 : x
  2. Step 2: Convert to fraction form
    342,341.04/472,421.80 = 189,375.24/x
  3. Step 3: Cross multiply
    342,341.04x = 472,421.80 × 189,375.24
  4. Step 4: Simplify right side
    342,341.04x = 89,464,991,756.23
  5. Step 5: Solve for x
    x = 89,464,991,756.23/342,341.04
  6. Step 6: Final answer
    x = 261,332.94

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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.