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Finding the Fourth Proportional to 254,510.40, 351,228.59 and 139,799.66

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Solution

The fourth proportional to 254,510.40, 351,228.59 and 139,799.66 is: 192,925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,510.40 : 351,228.59 = 139,799.66 : x
  2. Step 2: Convert to fraction form
    254,510.40/351,228.59 = 139,799.66/x
  3. Step 3: Cross multiply
    254,510.40x = 351,228.59 × 139,799.66
  4. Step 4: Simplify right side
    254,510.40x = 49,101,635,533.39
  5. Step 5: Solve for x
    x = 49,101,635,533.39/254,510.40
  6. Step 6: Final answer
    x = 192,925.85

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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.