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Finding the Fourth Proportional to 260,980.59, 360,136.15 and 153,529.86

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Solution

The fourth proportional to 260,980.59, 360,136.15 and 153,529.86 is: 211,861.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,980.59 : 360,136.15 = 153,529.86 : x
  2. Step 2: Convert to fraction form
    260,980.59/360,136.15 = 153,529.86/x
  3. Step 3: Cross multiply
    260,980.59x = 360,136.15 × 153,529.86
  4. Step 4: Simplify right side
    260,980.59x = 55,291,652,690.44
  5. Step 5: Solve for x
    x = 55,291,652,690.44/260,980.59
  6. Step 6: Final answer
    x = 211,861.17

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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.