Home / 215,814.16-297,717.69-144,211.78

Finding the Fourth Proportional to 215,814.16, 297,717.69 and 144,211.78

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Solution

The fourth proportional to 215,814.16, 297,717.69 and 144,211.78 is: 198,941.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,814.16 : 297,717.69 = 144,211.78 : x
  2. Step 2: Convert to fraction form
    215,814.16/297,717.69 = 144,211.78/x
  3. Step 3: Cross multiply
    215,814.16x = 297,717.69 × 144,211.78
  4. Step 4: Simplify right side
    215,814.16x = 42,934,398,012.39
  5. Step 5: Solve for x
    x = 42,934,398,012.39/215,814.16
  6. Step 6: Final answer
    x = 198,941.52

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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.