Home / 209,001.68-288,440.11-118,373.77

Finding the Fourth Proportional to 209,001.68, 288,440.11 and 118,373.77

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Solution

The fourth proportional to 209,001.68, 288,440.11 and 118,373.77 is: 163,365.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,001.68 : 288,440.11 = 118,373.77 : x
  2. Step 2: Convert to fraction form
    209,001.68/288,440.11 = 118,373.77/x
  3. Step 3: Cross multiply
    209,001.68x = 288,440.11 × 118,373.77
  4. Step 4: Simplify right side
    209,001.68x = 34,143,742,604.27
  5. Step 5: Solve for x
    x = 34,143,742,604.27/209,001.68
  6. Step 6: Final answer
    x = 163,365.88

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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.