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Finding the Fourth Proportional to 284,810.60, 426,870.30 and 126,871.40

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Solution

The fourth proportional to 284,810.60, 426,870.30 and 126,871.40 is: 190,153.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,810.60 : 426,870.30 = 126,871.40 : x
  2. Step 2: Convert to fraction form
    284,810.60/426,870.30 = 126,871.40/x
  3. Step 3: Cross multiply
    284,810.60x = 426,870.30 × 126,871.40
  4. Step 4: Simplify right side
    284,810.60x = 54,157,632,579.42
  5. Step 5: Solve for x
    x = 54,157,632,579.42/284,810.60
  6. Step 6: Final answer
    x = 190,153.15

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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.