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Finding the Fourth Proportional to 253,113.18, 349,293.24 and 139,933.50

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Solution

The fourth proportional to 253,113.18, 349,293.24 and 139,933.50 is: 193,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,113.18 : 349,293.24 = 139,933.50 : x
  2. Step 2: Convert to fraction form
    253,113.18/349,293.24 = 139,933.50/x
  3. Step 3: Cross multiply
    253,113.18x = 349,293.24 × 139,933.50
  4. Step 4: Simplify right side
    253,113.18x = 48,877,825,599.54
  5. Step 5: Solve for x
    x = 48,877,825,599.54/253,113.18
  6. Step 6: Final answer
    x = 193,106.60

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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.