Home / 249,920.32-374,880.18-81,440.38

Finding the Fourth Proportional to 249,920.32, 374,880.18 and 81,440.38

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Solution

The fourth proportional to 249,920.32, 374,880.18 and 81,440.38 is: 122,160.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,920.32 : 374,880.18 = 81,440.38 : x
  2. Step 2: Convert to fraction form
    249,920.32/374,880.18 = 81,440.38/x
  3. Step 3: Cross multiply
    249,920.32x = 374,880.18 × 81,440.38
  4. Step 4: Simplify right side
    249,920.32x = 30,530,384,313.67
  5. Step 5: Solve for x
    x = 30,530,384,313.67/249,920.32
  6. Step 6: Final answer
    x = 122,160.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.