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Finding the Fourth Proportional to 374,869.80, 561,624.30 and 216,628.20

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Solution

The fourth proportional to 374,869.80, 561,624.30 and 216,628.20 is: 324,549.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,869.80 : 561,624.30 = 216,628.20 : x
  2. Step 2: Convert to fraction form
    374,869.80/561,624.30 = 216,628.20/x
  3. Step 3: Cross multiply
    374,869.80x = 561,624.30 × 216,628.20
  4. Step 4: Simplify right side
    374,869.80x = 121,663,661,185.26
  5. Step 5: Solve for x
    x = 121,663,661,185.26/374,869.80
  6. Step 6: Final answer
    x = 324,549.11

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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.