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Finding the Fourth Proportional to 305,452.48, 421,547.58 and 169,512.22

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Solution

The fourth proportional to 305,452.48, 421,547.58 and 169,512.22 is: 233,939.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,452.48 : 421,547.58 = 169,512.22 : x
  2. Step 2: Convert to fraction form
    305,452.48/421,547.58 = 169,512.22/x
  3. Step 3: Cross multiply
    305,452.48x = 421,547.58 × 169,512.22
  4. Step 4: Simplify right side
    305,452.48x = 71,457,466,121.43
  5. Step 5: Solve for x
    x = 71,457,466,121.43/305,452.48
  6. Step 6: Final answer
    x = 233,939.72

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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.