Home / 208,288.08-287,437.82-112,794.92

Finding the Fourth Proportional to 208,288.08, 287,437.82 and 112,794.92

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Solution

The fourth proportional to 208,288.08, 287,437.82 and 112,794.92 is: 155,657.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,288.08 : 287,437.82 = 112,794.92 : x
  2. Step 2: Convert to fraction form
    208,288.08/287,437.82 = 112,794.92/x
  3. Step 3: Cross multiply
    208,288.08x = 287,437.82 × 112,794.92
  4. Step 4: Simplify right side
    208,288.08x = 32,421,525,911.87
  5. Step 5: Solve for x
    x = 32,421,525,911.87/208,288.08
  6. Step 6: Final answer
    x = 155,657.14

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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.