Home / 1,117.15-1,675.51-336.98

Finding the Fourth Proportional to 1,117.15, 1,675.51 and 336.98

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Solution

The fourth proportional to 1,117.15, 1,675.51 and 336.98 is: 505.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.15 : 1,675.51 = 336.98 : x
  2. Step 2: Convert to fraction form
    1,117.15/1,675.51 = 336.98/x
  3. Step 3: Cross multiply
    1,117.15x = 1,675.51 × 336.98
  4. Step 4: Simplify right side
    1,117.15x = 564,616.71
  5. Step 5: Solve for x
    x = 564,616.71/1,117.15
  6. Step 6: Final answer
    x = 505.41

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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.