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Finding the Fourth Proportional to 284,316.80, 426,280.80 and 134,628.80

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Solution

The fourth proportional to 284,316.80, 426,280.80 and 134,628.80 is: 201,851.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,316.80 : 426,280.80 = 134,628.80 : x
  2. Step 2: Convert to fraction form
    284,316.80/426,280.80 = 134,628.80/x
  3. Step 3: Cross multiply
    284,316.80x = 426,280.80 × 134,628.80
  4. Step 4: Simplify right side
    284,316.80x = 57,389,672,567.04
  5. Step 5: Solve for x
    x = 57,389,672,567.04/284,316.80
  6. Step 6: Final answer
    x = 201,851.15

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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.