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Finding the Fourth Proportional to 379,447.40, 569,827.20 and 202,300.40

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Solution

The fourth proportional to 379,447.40, 569,827.20 and 202,300.40 is: 303,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,447.40 : 569,827.20 = 202,300.40 : x
  2. Step 2: Convert to fraction form
    379,447.40/569,827.20 = 202,300.40/x
  3. Step 3: Cross multiply
    379,447.40x = 569,827.20 × 202,300.40
  4. Step 4: Simplify right side
    379,447.40x = 115,276,270,490.88
  5. Step 5: Solve for x
    x = 115,276,270,490.88/379,447.40
  6. Step 6: Final answer
    x = 303,800.40

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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.