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Finding the Fourth Proportional to 169,290.40, 253,853.52 and 50,939.68

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Solution

The fourth proportional to 169,290.40, 253,853.52 and 50,939.68 is: 76,384.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,290.40 : 253,853.52 = 50,939.68 : x
  2. Step 2: Convert to fraction form
    169,290.40/253,853.52 = 50,939.68/x
  3. Step 3: Cross multiply
    169,290.40x = 253,853.52 × 50,939.68
  4. Step 4: Simplify right side
    169,290.40x = 12,931,217,075.67
  5. Step 5: Solve for x
    x = 12,931,217,075.67/169,290.40
  6. Step 6: Final answer
    x = 76,384.82

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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.