Home / 236,246.18-326,012.63-128,818.31

Finding the Fourth Proportional to 236,246.18, 326,012.63 and 128,818.31

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Solution

The fourth proportional to 236,246.18, 326,012.63 and 128,818.31 is: 177,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,246.18 : 326,012.63 = 128,818.31 : x
  2. Step 2: Convert to fraction form
    236,246.18/326,012.63 = 128,818.31/x
  3. Step 3: Cross multiply
    236,246.18x = 326,012.63 × 128,818.31
  4. Step 4: Simplify right side
    236,246.18x = 41,996,396,206.20
  5. Step 5: Solve for x
    x = 41,996,396,206.20/236,246.18
  6. Step 6: Final answer
    x = 177,765.40

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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.