Home / 202,923.40-304,385.10-139,937.80

Finding the Fourth Proportional to 202,923.40, 304,385.10 and 139,937.80

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Solution

The fourth proportional to 202,923.40, 304,385.10 and 139,937.80 is: 209,906.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,923.40 : 304,385.10 = 139,937.80 : x
  2. Step 2: Convert to fraction form
    202,923.40/304,385.10 = 139,937.80/x
  3. Step 3: Cross multiply
    202,923.40x = 304,385.10 × 139,937.80
  4. Step 4: Simplify right side
    202,923.40x = 42,594,981,246.78
  5. Step 5: Solve for x
    x = 42,594,981,246.78/202,923.40
  6. Step 6: Final answer
    x = 209,906.70

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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.