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Finding the Fourth Proportional to 225,210.66, 310,743.99 and 129,692.22

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Solution

The fourth proportional to 225,210.66, 310,743.99 and 129,692.22 is: 178,948.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,210.66 : 310,743.99 = 129,692.22 : x
  2. Step 2: Convert to fraction form
    225,210.66/310,743.99 = 129,692.22/x
  3. Step 3: Cross multiply
    225,210.66x = 310,743.99 × 129,692.22
  4. Step 4: Simplify right side
    225,210.66x = 40,301,077,914.76
  5. Step 5: Solve for x
    x = 40,301,077,914.76/225,210.66
  6. Step 6: Final answer
    x = 178,948.36

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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.