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Finding the Fourth Proportional to 346,735.80, 520,103.70 and 169,270.20

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Solution

The fourth proportional to 346,735.80, 520,103.70 and 169,270.20 is: 253,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,735.80 : 520,103.70 = 169,270.20 : x
  2. Step 2: Convert to fraction form
    346,735.80/520,103.70 = 169,270.20/x
  3. Step 3: Cross multiply
    346,735.80x = 520,103.70 × 169,270.20
  4. Step 4: Simplify right side
    346,735.80x = 88,038,057,319.74
  5. Step 5: Solve for x
    x = 88,038,057,319.74/346,735.80
  6. Step 6: Final answer
    x = 253,905.30

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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.