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Finding the Fourth Proportional to 360,220.32, 540,136.08 and 255,244.32

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Solution

The fourth proportional to 360,220.32, 540,136.08 and 255,244.32 is: 382,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,220.32 : 540,136.08 = 255,244.32 : x
  2. Step 2: Convert to fraction form
    360,220.32/540,136.08 = 255,244.32/x
  3. Step 3: Cross multiply
    360,220.32x = 540,136.08 × 255,244.32
  4. Step 4: Simplify right side
    360,220.32x = 137,866,666,447.07
  5. Step 5: Solve for x
    x = 137,866,666,447.07/360,220.32
  6. Step 6: Final answer
    x = 382,728.73

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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.