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Finding the Fourth Proportional to 210,374.88, 290,338.34 and 125,491.94

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Solution

The fourth proportional to 210,374.88, 290,338.34 and 125,491.94 is: 173,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,374.88 : 290,338.34 = 125,491.94 : x
  2. Step 2: Convert to fraction form
    210,374.88/290,338.34 = 125,491.94/x
  3. Step 3: Cross multiply
    210,374.88x = 290,338.34 × 125,491.94
  4. Step 4: Simplify right side
    210,374.88x = 36,435,119,463.83
  5. Step 5: Solve for x
    x = 36,435,119,463.83/210,374.88
  6. Step 6: Final answer
    x = 173,191.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.