Home / 243,816.30-336,484.26-136,420.92

Finding the Fourth Proportional to 243,816.30, 336,484.26 and 136,420.92

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Solution

The fourth proportional to 243,816.30, 336,484.26 and 136,420.92 is: 188,270.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,816.30 : 336,484.26 = 136,420.92 : x
  2. Step 2: Convert to fraction form
    243,816.30/336,484.26 = 136,420.92/x
  3. Step 3: Cross multiply
    243,816.30x = 336,484.26 × 136,420.92
  4. Step 4: Simplify right side
    243,816.30x = 45,903,492,314.72
  5. Step 5: Solve for x
    x = 45,903,492,314.72/243,816.30
  6. Step 6: Final answer
    x = 188,270.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.