Home / 208,270.08-287,412.30-112,776.48

Finding the Fourth Proportional to 208,270.08, 287,412.30 and 112,776.48

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Solution

The fourth proportional to 208,270.08, 287,412.30 and 112,776.48 is: 155,631.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,270.08 : 287,412.30 = 112,776.48 : x
  2. Step 2: Convert to fraction form
    208,270.08/287,412.30 = 112,776.48/x
  3. Step 3: Cross multiply
    208,270.08x = 287,412.30 × 112,776.48
  4. Step 4: Simplify right side
    208,270.08x = 32,413,347,502.70
  5. Step 5: Solve for x
    x = 32,413,347,502.70/208,270.08
  6. Step 6: Final answer
    x = 155,631.32

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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.