Home / 208,937.40-288,339.51-122,902.64

Finding the Fourth Proportional to 208,937.40, 288,339.51 and 122,902.64

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Solution

The fourth proportional to 208,937.40, 288,339.51 and 122,902.64 is: 169,609.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,937.40 : 288,339.51 = 122,902.64 : x
  2. Step 2: Convert to fraction form
    208,937.40/288,339.51 = 122,902.64/x
  3. Step 3: Cross multiply
    208,937.40x = 288,339.51 × 122,902.64
  4. Step 4: Simplify right side
    208,937.40x = 35,437,686,995.31
  5. Step 5: Solve for x
    x = 35,437,686,995.31/208,937.40
  6. Step 6: Final answer
    x = 169,609.11

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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.