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Finding the Fourth Proportional to 372,433.92, 513,953.80 and 202,667.64

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Solution

The fourth proportional to 372,433.92, 513,953.80 and 202,667.64 is: 279,678.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,433.92 : 513,953.80 = 202,667.64 : x
  2. Step 2: Convert to fraction form
    372,433.92/513,953.80 = 202,667.64/x
  3. Step 3: Cross multiply
    372,433.92x = 513,953.80 × 202,667.64
  4. Step 4: Simplify right side
    372,433.92x = 104,161,803,715.03
  5. Step 5: Solve for x
    x = 104,161,803,715.03/372,433.92
  6. Step 6: Final answer
    x = 279,678.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.