Home / 209,230.04-288,727.80-118,580.78

Finding the Fourth Proportional to 209,230.04, 288,727.80 and 118,580.78

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Solution

The fourth proportional to 209,230.04, 288,727.80 and 118,580.78 is: 163,636.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,230.04 : 288,727.80 = 118,580.78 : x
  2. Step 2: Convert to fraction form
    209,230.04/288,727.80 = 118,580.78/x
  3. Step 3: Cross multiply
    209,230.04x = 288,727.80 × 118,580.78
  4. Step 4: Simplify right side
    209,230.04x = 34,237,567,731.68
  5. Step 5: Solve for x
    x = 34,237,567,731.68/209,230.04
  6. Step 6: Final answer
    x = 163,636.00

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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.