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Finding the Fourth Proportional to 209,248.65, 288,785.72 and 118,594.88

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Solution

The fourth proportional to 209,248.65, 288,785.72 and 118,594.88 is: 163,673.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,248.65 : 288,785.72 = 118,594.88 : x
  2. Step 2: Convert to fraction form
    209,248.65/288,785.72 = 118,594.88/x
  3. Step 3: Cross multiply
    209,248.65x = 288,785.72 × 118,594.88
  4. Step 4: Simplify right side
    209,248.65x = 34,248,507,216.14
  5. Step 5: Solve for x
    x = 34,248,507,216.14/209,248.65
  6. Step 6: Final answer
    x = 163,673.73

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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.