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Finding the Fourth Proportional to 208,008.98, 312,060.44 and 65,862.89

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Solution

The fourth proportional to 208,008.98, 312,060.44 and 65,862.89 is: 98,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,008.98 : 312,060.44 = 65,862.89 : x
  2. Step 2: Convert to fraction form
    208,008.98/312,060.44 = 65,862.89/x
  3. Step 3: Cross multiply
    208,008.98x = 312,060.44 × 65,862.89
  4. Step 4: Simplify right side
    208,008.98x = 20,553,200,872.77
  5. Step 5: Solve for x
    x = 20,553,200,872.77/208,008.98
  6. Step 6: Final answer
    x = 98,809.20

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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.