Home / 209,488.32-314,075.52-126,362.88

Finding the Fourth Proportional to 209,488.32, 314,075.52 and 126,362.88

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Solution

The fourth proportional to 209,488.32, 314,075.52 and 126,362.88 is: 189,449.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,488.32 : 314,075.52 = 126,362.88 : x
  2. Step 2: Convert to fraction form
    209,488.32/314,075.52 = 126,362.88/x
  3. Step 3: Cross multiply
    209,488.32x = 314,075.52 × 126,362.88
  4. Step 4: Simplify right side
    209,488.32x = 39,687,487,244.70
  5. Step 5: Solve for x
    x = 39,687,487,244.70/209,488.32
  6. Step 6: Final answer
    x = 189,449.64

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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.