Home / 352,178.16-485,931.12-208,984.80

Finding the Fourth Proportional to 352,178.16, 485,931.12 and 208,984.80

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Solution

The fourth proportional to 352,178.16, 485,931.12 and 208,984.80 is: 288,354.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,178.16 : 485,931.12 = 208,984.80 : x
  2. Step 2: Convert to fraction form
    352,178.16/485,931.12 = 208,984.80/x
  3. Step 3: Cross multiply
    352,178.16x = 485,931.12 × 208,984.80
  4. Step 4: Simplify right side
    352,178.16x = 101,552,217,926.98
  5. Step 5: Solve for x
    x = 101,552,217,926.98/352,178.16
  6. Step 6: Final answer
    x = 288,354.67

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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.