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Finding the Fourth Proportional to 375,515.46, 564,454.17 and 326,209.55

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Solution

The fourth proportional to 375,515.46, 564,454.17 and 326,209.55 is: 490,340.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,515.46 : 564,454.17 = 326,209.55 : x
  2. Step 2: Convert to fraction form
    375,515.46/564,454.17 = 326,209.55/x
  3. Step 3: Cross multiply
    375,515.46x = 564,454.17 × 326,209.55
  4. Step 4: Simplify right side
    375,515.46x = 184,130,337,969.05
  5. Step 5: Solve for x
    x = 184,130,337,969.05/375,515.46
  6. Step 6: Final answer
    x = 490,340.23

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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.