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Finding the Fourth Proportional to 284,803.58, 427,117.88 and 134,999.55

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Solution

The fourth proportional to 284,803.58, 427,117.88 and 134,999.55 is: 202,457.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,803.58 : 427,117.88 = 134,999.55 : x
  2. Step 2: Convert to fraction form
    284,803.58/427,117.88 = 134,999.55/x
  3. Step 3: Cross multiply
    284,803.58x = 427,117.88 × 134,999.55
  4. Step 4: Simplify right side
    284,803.58x = 57,660,721,596.95
  5. Step 5: Solve for x
    x = 57,660,721,596.95/284,803.58
  6. Step 6: Final answer
    x = 202,457.85

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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.