Home / 207,005.68-310,429.71-135,909.31

Finding the Fourth Proportional to 207,005.68, 310,429.71 and 135,909.31

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Solution

The fourth proportional to 207,005.68, 310,429.71 and 135,909.31 is: 203,812.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,005.68 : 310,429.71 = 135,909.31 : x
  2. Step 2: Convert to fraction form
    207,005.68/310,429.71 = 135,909.31/x
  3. Step 3: Cross multiply
    207,005.68x = 310,429.71 × 135,909.31
  4. Step 4: Simplify right side
    207,005.68x = 42,190,287,689.60
  5. Step 5: Solve for x
    x = 42,190,287,689.60/207,005.68
  6. Step 6: Final answer
    x = 203,812.22

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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.