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Finding the Fourth Proportional to 379,472.80, 569,036.40 and 169,002.40

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Solution

The fourth proportional to 379,472.80, 569,036.40 and 169,002.40 is: 253,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,472.80 : 569,036.40 = 169,002.40 : x
  2. Step 2: Convert to fraction form
    379,472.80/569,036.40 = 169,002.40/x
  3. Step 3: Cross multiply
    379,472.80x = 569,036.40 × 169,002.40
  4. Step 4: Simplify right side
    379,472.80x = 96,168,517,287.36
  5. Step 5: Solve for x
    x = 96,168,517,287.36/379,472.80
  6. Step 6: Final answer
    x = 253,426.64

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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.