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Finding the Fourth Proportional to 243,423.40, 365,079.90 and 110,215.72

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Solution

The fourth proportional to 243,423.40, 365,079.90 and 110,215.72 is: 165,298.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,423.40 : 365,079.90 = 110,215.72 : x
  2. Step 2: Convert to fraction form
    243,423.40/365,079.90 = 110,215.72/x
  3. Step 3: Cross multiply
    243,423.40x = 365,079.90 × 110,215.72
  4. Step 4: Simplify right side
    243,423.40x = 40,237,544,036.03
  5. Step 5: Solve for x
    x = 40,237,544,036.03/243,423.40
  6. Step 6: Final answer
    x = 165,298.59

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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.