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Finding the Fourth Proportional to 243,645.20, 365,492.86 and 91,970.03

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Solution

The fourth proportional to 243,645.20, 365,492.86 and 91,970.03 is: 137,964.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,645.20 : 365,492.86 = 91,970.03 : x
  2. Step 2: Convert to fraction form
    243,645.20/365,492.86 = 91,970.03/x
  3. Step 3: Cross multiply
    243,645.20x = 365,492.86 × 91,970.03
  4. Step 4: Simplify right side
    243,645.20x = 33,614,388,612.19
  5. Step 5: Solve for x
    x = 33,614,388,612.19/243,645.20
  6. Step 6: Final answer
    x = 137,964.50

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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.