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Finding the Fourth Proportional to 553,897.10, 830,512.87 and 216,535.95

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Solution

The fourth proportional to 553,897.10, 830,512.87 and 216,535.95 is: 324,673.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,897.10 : 830,512.87 = 216,535.95 : x
  2. Step 2: Convert to fraction form
    553,897.10/830,512.87 = 216,535.95/x
  3. Step 3: Cross multiply
    553,897.10x = 830,512.87 × 216,535.95
  4. Step 4: Simplify right side
    553,897.10x = 179,835,892,751.34
  5. Step 5: Solve for x
    x = 179,835,892,751.34/553,897.10
  6. Step 6: Final answer
    x = 324,673.83

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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.