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Finding the Fourth Proportional to 252,660.42, 348,664.71 and 139,480.74

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Solution

The fourth proportional to 252,660.42, 348,664.71 and 139,480.74 is: 192,479.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,660.42 : 348,664.71 = 139,480.74 : x
  2. Step 2: Convert to fraction form
    252,660.42/348,664.71 = 139,480.74/x
  3. Step 3: Cross multiply
    252,660.42x = 348,664.71 × 139,480.74
  4. Step 4: Simplify right side
    252,660.42x = 48,632,011,762.69
  5. Step 5: Solve for x
    x = 48,632,011,762.69/252,660.42
  6. Step 6: Final answer
    x = 192,479.74

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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.