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Finding the Fourth Proportional to 202,210.71, 279,048.97 and 111,567.48

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Solution

The fourth proportional to 202,210.71, 279,048.97 and 111,567.48 is: 153,962.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,210.71 : 279,048.97 = 111,567.48 : x
  2. Step 2: Convert to fraction form
    202,210.71/279,048.97 = 111,567.48/x
  3. Step 3: Cross multiply
    202,210.71x = 279,048.97 × 111,567.48
  4. Step 4: Simplify right side
    202,210.71x = 31,132,790,379.50
  5. Step 5: Solve for x
    x = 31,132,790,379.50/202,210.71
  6. Step 6: Final answer
    x = 153,962.12

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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.