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Finding the Fourth Proportional to 347,360.40, 519,485.40 and 291,373.20

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Solution

The fourth proportional to 347,360.40, 519,485.40 and 291,373.20 is: 435,755.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,360.40 : 519,485.40 = 291,373.20 : x
  2. Step 2: Convert to fraction form
    347,360.40/519,485.40 = 291,373.20/x
  3. Step 3: Cross multiply
    347,360.40x = 519,485.40 × 291,373.20
  4. Step 4: Simplify right side
    347,360.40x = 151,364,123,351.28
  5. Step 5: Solve for x
    x = 151,364,123,351.28/347,360.40
  6. Step 6: Final answer
    x = 435,755.27

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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.