Home / 209,214.78-288,707.08-118,565.43

Finding the Fourth Proportional to 209,214.78, 288,707.08 and 118,565.43

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Solution

The fourth proportional to 209,214.78, 288,707.08 and 118,565.43 is: 163,615.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,214.78 : 288,707.08 = 118,565.43 : x
  2. Step 2: Convert to fraction form
    209,214.78/288,707.08 = 118,565.43/x
  3. Step 3: Cross multiply
    209,214.78x = 288,707.08 × 118,565.43
  4. Step 4: Simplify right side
    209,214.78x = 34,230,679,084.24
  5. Step 5: Solve for x
    x = 34,230,679,084.24/209,214.78
  6. Step 6: Final answer
    x = 163,615.01

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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.