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Finding the Fourth Proportional to 379,470.80, 569,033.40 and 169,000.40

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Solution

The fourth proportional to 379,470.80, 569,033.40 and 169,000.40 is: 253,423.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,470.80 : 569,033.40 = 169,000.40 : x
  2. Step 2: Convert to fraction form
    379,470.80/569,033.40 = 169,000.40/x
  3. Step 3: Cross multiply
    379,470.80x = 569,033.40 × 169,000.40
  4. Step 4: Simplify right side
    379,470.80x = 96,166,872,213.36
  5. Step 5: Solve for x
    x = 96,166,872,213.36/379,470.80
  6. Step 6: Final answer
    x = 253,423.64

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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.