Home / 209,358.16-288,849.10-118,707.02

Finding the Fourth Proportional to 209,358.16, 288,849.10 and 118,707.02

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Solution

The fourth proportional to 209,358.16, 288,849.10 and 118,707.02 is: 163,778.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,358.16 : 288,849.10 = 118,707.02 : x
  2. Step 2: Convert to fraction form
    209,358.16/288,849.10 = 118,707.02/x
  3. Step 3: Cross multiply
    209,358.16x = 288,849.10 × 118,707.02
  4. Step 4: Simplify right side
    209,358.16x = 34,288,415,890.68
  5. Step 5: Solve for x
    x = 34,288,415,890.68/209,358.16
  6. Step 6: Final answer
    x = 163,778.74

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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.