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Finding the Fourth Proportional to 314,840.72, 472,334.94 and 125,312.60

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Solution

The fourth proportional to 314,840.72, 472,334.94 and 125,312.60 is: 187,998.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,840.72 : 472,334.94 = 125,312.60 : x
  2. Step 2: Convert to fraction form
    314,840.72/472,334.94 = 125,312.60/x
  3. Step 3: Cross multiply
    314,840.72x = 472,334.94 × 125,312.60
  4. Step 4: Simplify right side
    314,840.72x = 59,189,517,040.57
  5. Step 5: Solve for x
    x = 59,189,517,040.57/314,840.72
  6. Step 6: Final answer
    x = 187,998.29

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1.5x scale

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.