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Finding the Fourth Proportional to 312,124.02, 468,255.69 and 122,602.74

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Solution

The fourth proportional to 312,124.02, 468,255.69 and 122,602.74 is: 183,931.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,124.02 : 468,255.69 = 122,602.74 : x
  2. Step 2: Convert to fraction form
    312,124.02/468,255.69 = 122,602.74/x
  3. Step 3: Cross multiply
    312,124.02x = 468,255.69 × 122,602.74
  4. Step 4: Simplify right side
    312,124.02x = 57,409,430,614.59
  5. Step 5: Solve for x
    x = 57,409,430,614.59/312,124.02
  6. Step 6: Final answer
    x = 183,931.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.