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Finding the Fourth Proportional to 254,280.31, 350,911.28 and 139,569.68

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Solution

The fourth proportional to 254,280.31, 350,911.28 and 139,569.68 is: 192,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,280.31 : 350,911.28 = 139,569.68 : x
  2. Step 2: Convert to fraction form
    254,280.31/350,911.28 = 139,569.68/x
  3. Step 3: Cross multiply
    254,280.31x = 350,911.28 × 139,569.68
  4. Step 4: Simplify right side
    254,280.31x = 48,976,575,057.99
  5. Step 5: Solve for x
    x = 48,976,575,057.99/254,280.31
  6. Step 6: Final answer
    x = 192,608.60

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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.