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Finding the Fourth Proportional to 210,083.90, 315,077.79 and 60,323

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Solution

The fourth proportional to 210,083.90, 315,077.79 and 60,323 is: 90,470.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,083.90 : 315,077.79 = 60,323 : x
  2. Step 2: Convert to fraction form
    210,083.90/315,077.79 = 60,323/x
  3. Step 3: Cross multiply
    210,083.90x = 315,077.79 × 60,323
  4. Step 4: Simplify right side
    210,083.90x = 19,006,437,526.17
  5. Step 5: Solve for x
    x = 19,006,437,526.17/210,083.90
  6. Step 6: Final answer
    x = 90,470.70

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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.