Home / 208,253.12-312,340.32-101,529.92

Finding the Fourth Proportional to 208,253.12, 312,340.32 and 101,529.92

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Solution

The fourth proportional to 208,253.12, 312,340.32 and 101,529.92 is: 152,275.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,253.12 : 312,340.32 = 101,529.92 : x
  2. Step 2: Convert to fraction form
    208,253.12/312,340.32 = 101,529.92/x
  3. Step 3: Cross multiply
    208,253.12x = 312,340.32 × 101,529.92
  4. Step 4: Simplify right side
    208,253.12x = 31,711,887,702.37
  5. Step 5: Solve for x
    x = 31,711,887,702.37/208,253.12
  6. Step 6: Final answer
    x = 152,275.69

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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.