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Finding the Fourth Proportional to 332,688, 459,108.90 and 189,448.08

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Solution

The fourth proportional to 332,688, 459,108.90 and 189,448.08 is: 261,438.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,688 : 459,108.90 = 189,448.08 : x
  2. Step 2: Convert to fraction form
    332,688/459,108.90 = 189,448.08/x
  3. Step 3: Cross multiply
    332,688x = 459,108.90 × 189,448.08
  4. Step 4: Simplify right side
    332,688x = 86,977,299,615.91
  5. Step 5: Solve for x
    x = 86,977,299,615.91/332,688
  6. Step 6: Final answer
    x = 261,438.04

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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.