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Finding the Fourth Proportional to 243,605.70, 365,408.55 and 168,810.30

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Solution

The fourth proportional to 243,605.70, 365,408.55 and 168,810.30 is: 253,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,605.70 : 365,408.55 = 168,810.30 : x
  2. Step 2: Convert to fraction form
    243,605.70/365,408.55 = 168,810.30/x
  3. Step 3: Cross multiply
    243,605.70x = 365,408.55 × 168,810.30
  4. Step 4: Simplify right side
    243,605.70x = 61,684,726,948.07
  5. Step 5: Solve for x
    x = 61,684,726,948.07/243,605.70
  6. Step 6: Final answer
    x = 253,215.45

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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.