Home / 209,368.46-288,920.10-113,875.22

Finding the Fourth Proportional to 209,368.46, 288,920.10 and 113,875.22

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Solution

The fourth proportional to 209,368.46, 288,920.10 and 113,875.22 is: 157,143.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,368.46 : 288,920.10 = 113,875.22 : x
  2. Step 2: Convert to fraction form
    209,368.46/288,920.10 = 113,875.22/x
  3. Step 3: Cross multiply
    209,368.46x = 288,920.10 × 113,875.22
  4. Step 4: Simplify right side
    209,368.46x = 32,900,839,949.92
  5. Step 5: Solve for x
    x = 32,900,839,949.92/209,368.46
  6. Step 6: Final answer
    x = 157,143.25

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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.