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Finding the Fourth Proportional to 645,041.02, 967,206.12 and 308,166.52

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Solution

The fourth proportional to 645,041.02, 967,206.12 and 308,166.52 is: 462,079.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,041.02 : 967,206.12 = 308,166.52 : x
  2. Step 2: Convert to fraction form
    645,041.02/967,206.12 = 308,166.52/x
  3. Step 3: Cross multiply
    645,041.02x = 967,206.12 × 308,166.52
  4. Step 4: Simplify right side
    645,041.02x = 298,060,544,123.10
  5. Step 5: Solve for x
    x = 298,060,544,123.10/645,041.02
  6. Step 6: Final answer
    x = 462,079.98

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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.