Home / 209,009.21-288,439.52-118,363.22

Finding the Fourth Proportional to 209,009.21, 288,439.52 and 118,363.22

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Solution

The fourth proportional to 209,009.21, 288,439.52 and 118,363.22 is: 163,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,009.21 : 288,439.52 = 118,363.22 : x
  2. Step 2: Convert to fraction form
    209,009.21/288,439.52 = 118,363.22/x
  3. Step 3: Cross multiply
    209,009.21x = 288,439.52 × 118,363.22
  4. Step 4: Simplify right side
    209,009.21x = 34,140,629,770.64
  5. Step 5: Solve for x
    x = 34,140,629,770.64/209,009.21
  6. Step 6: Final answer
    x = 163,345.10

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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.