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Finding the Fourth Proportional to 328,176.30, 492,264.45 and 275,688.30

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Solution

The fourth proportional to 328,176.30, 492,264.45 and 275,688.30 is: 413,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,176.30 : 492,264.45 = 275,688.30 : x
  2. Step 2: Convert to fraction form
    328,176.30/492,264.45 = 275,688.30/x
  3. Step 3: Cross multiply
    328,176.30x = 492,264.45 × 275,688.30
  4. Step 4: Simplify right side
    328,176.30x = 135,711,549,370.94
  5. Step 5: Solve for x
    x = 135,711,549,370.94/328,176.30
  6. Step 6: Final answer
    x = 413,532.45

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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.