Home / 208,557.60-312,807.36-68,298.24

Finding the Fourth Proportional to 208,557.60, 312,807.36 and 68,298.24

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Solution

The fourth proportional to 208,557.60, 312,807.36 and 68,298.24 is: 102,437.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,557.60 : 312,807.36 = 68,298.24 : x
  2. Step 2: Convert to fraction form
    208,557.60/312,807.36 = 68,298.24/x
  3. Step 3: Cross multiply
    208,557.60x = 312,807.36 × 68,298.24
  4. Step 4: Simplify right side
    208,557.60x = 21,364,192,147.05
  5. Step 5: Solve for x
    x = 21,364,192,147.05/208,557.60
  6. Step 6: Final answer
    x = 102,437.85

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1.5x scale

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.