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Finding the Fourth Proportional to 342,303.01, 472,337.17 and 189,320.54

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Solution

The fourth proportional to 342,303.01, 472,337.17 and 189,320.54 is: 261,239.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,303.01 : 472,337.17 = 189,320.54 : x
  2. Step 2: Convert to fraction form
    342,303.01/472,337.17 = 189,320.54/x
  3. Step 3: Cross multiply
    342,303.01x = 472,337.17 × 189,320.54
  4. Step 4: Simplify right side
    342,303.01x = 89,423,128,973.31
  5. Step 5: Solve for x
    x = 89,423,128,973.31/342,303.01
  6. Step 6: Final answer
    x = 261,239.68

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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.