Home / 236,870.40-326,880.48-129,441.12

Finding the Fourth Proportional to 236,870.40, 326,880.48 and 129,441.12

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Solution

The fourth proportional to 236,870.40, 326,880.48 and 129,441.12 is: 178,628.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,870.40 : 326,880.48 = 129,441.12 : x
  2. Step 2: Convert to fraction form
    236,870.40/326,880.48 = 129,441.12/x
  3. Step 3: Cross multiply
    236,870.40x = 326,880.48 × 129,441.12
  4. Step 4: Simplify right side
    236,870.40x = 42,311,775,437.34
  5. Step 5: Solve for x
    x = 42,311,775,437.34/236,870.40
  6. Step 6: Final answer
    x = 178,628.38

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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.