Home / 317,931.04-438,636.29-197,028.22

Finding the Fourth Proportional to 317,931.04, 438,636.29 and 197,028.22

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Solution

The fourth proportional to 317,931.04, 438,636.29 and 197,028.22 is: 271,831.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,931.04 : 438,636.29 = 197,028.22 : x
  2. Step 2: Convert to fraction form
    317,931.04/438,636.29 = 197,028.22/x
  3. Step 3: Cross multiply
    317,931.04x = 438,636.29 × 197,028.22
  4. Step 4: Simplify right side
    317,931.04x = 86,423,725,252.92
  5. Step 5: Solve for x
    x = 86,423,725,252.92/317,931.04
  6. Step 6: Final answer
    x = 271,831.67

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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.