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Finding the Fourth Proportional to 355,203.20, 530,213.66 and 310,362.38

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Solution

The fourth proportional to 355,203.20, 530,213.66 and 310,362.38 is: 463,279.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,203.20 : 530,213.66 = 310,362.38 : x
  2. Step 2: Convert to fraction form
    355,203.20/530,213.66 = 310,362.38/x
  3. Step 3: Cross multiply
    355,203.20x = 530,213.66 × 310,362.38
  4. Step 4: Simplify right side
    355,203.20x = 164,558,373,426.11
  5. Step 5: Solve for x
    x = 164,558,373,426.11/355,203.20
  6. Step 6: Final answer
    x = 463,279.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.