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Finding the Fourth Proportional to 553,601.10, 830,358.45 and 216,576.30

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Solution

The fourth proportional to 553,601.10, 830,358.45 and 216,576.30 is: 324,847.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,601.10 : 830,358.45 = 216,576.30 : x
  2. Step 2: Convert to fraction form
    553,601.10/830,358.45 = 216,576.30/x
  3. Step 3: Cross multiply
    553,601.10x = 830,358.45 × 216,576.30
  4. Step 4: Simplify right side
    553,601.10x = 179,835,960,774.74
  5. Step 5: Solve for x
    x = 179,835,960,774.74/553,601.10
  6. Step 6: Final answer
    x = 324,847.55

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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.