Home / 209,343.05-288,887.23-118,707.29

Finding the Fourth Proportional to 209,343.05, 288,887.23 and 118,707.29

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Solution

The fourth proportional to 209,343.05, 288,887.23 and 118,707.29 is: 163,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,343.05 : 288,887.23 = 118,707.29 : x
  2. Step 2: Convert to fraction form
    209,343.05/288,887.23 = 118,707.29/x
  3. Step 3: Cross multiply
    209,343.05x = 288,887.23 × 118,707.29
  4. Step 4: Simplify right side
    209,343.05x = 34,293,020,188.91
  5. Step 5: Solve for x
    x = 34,293,020,188.91/209,343.05
  6. Step 6: Final answer
    x = 163,812.56

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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.