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Finding the Fourth Proportional to 519,102.16, 716,311.20 and 315,264.64

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Solution

The fourth proportional to 519,102.16, 716,311.20 and 315,264.64 is: 435,034.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,102.16 : 716,311.20 = 315,264.64 : x
  2. Step 2: Convert to fraction form
    519,102.16/716,311.20 = 315,264.64/x
  3. Step 3: Cross multiply
    519,102.16x = 716,311.20 × 315,264.64
  4. Step 4: Simplify right side
    519,102.16x = 225,827,592,595.97
  5. Step 5: Solve for x
    x = 225,827,592,595.97/519,102.16
  6. Step 6: Final answer
    x = 435,034.97

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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.