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Finding the Fourth Proportional to 284,485.50, 426,938.16 and 134,725.50

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Solution

The fourth proportional to 284,485.50, 426,938.16 and 134,725.50 is: 202,187.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,485.50 : 426,938.16 = 134,725.50 : x
  2. Step 2: Convert to fraction form
    284,485.50/426,938.16 = 134,725.50/x
  3. Step 3: Cross multiply
    284,485.50x = 426,938.16 × 134,725.50
  4. Step 4: Simplify right side
    284,485.50x = 57,519,457,075.08
  5. Step 5: Solve for x
    x = 57,519,457,075.08/284,485.50
  6. Step 6: Final answer
    x = 202,187.66

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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.