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Finding the Fourth Proportional to 254,602.69, 351,357.58 and 139,888.49

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Solution

The fourth proportional to 254,602.69, 351,357.58 and 139,888.49 is: 193,049.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,602.69 : 351,357.58 = 139,888.49 : x
  2. Step 2: Convert to fraction form
    254,602.69/351,357.58 = 139,888.49/x
  3. Step 3: Cross multiply
    254,602.69x = 351,357.58 × 139,888.49
  4. Step 4: Simplify right side
    254,602.69x = 49,150,881,316.25
  5. Step 5: Solve for x
    x = 49,150,881,316.25/254,602.69
  6. Step 6: Final answer
    x = 193,049.34

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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.