Home / 202,917.40-304,376.10-139,931.80

Finding the Fourth Proportional to 202,917.40, 304,376.10 and 139,931.80

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Solution

The fourth proportional to 202,917.40, 304,376.10 and 139,931.80 is: 209,897.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,917.40 : 304,376.10 = 139,931.80 : x
  2. Step 2: Convert to fraction form
    202,917.40/304,376.10 = 139,931.80/x
  3. Step 3: Cross multiply
    202,917.40x = 304,376.10 × 139,931.80
  4. Step 4: Simplify right side
    202,917.40x = 42,591,895,549.98
  5. Step 5: Solve for x
    x = 42,591,895,549.98/202,917.40
  6. Step 6: Final answer
    x = 209,897.70

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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.