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Finding the Fourth Proportional to 359,010.63, 495,366.44 and 215,718.39

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Solution

The fourth proportional to 359,010.63, 495,366.44 and 215,718.39 is: 297,650.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,010.63 : 495,366.44 = 215,718.39 : x
  2. Step 2: Convert to fraction form
    359,010.63/495,366.44 = 215,718.39/x
  3. Step 3: Cross multiply
    359,010.63x = 495,366.44 × 215,718.39
  4. Step 4: Simplify right side
    359,010.63x = 106,859,649,818.24
  5. Step 5: Solve for x
    x = 106,859,649,818.24/359,010.63
  6. Step 6: Final answer
    x = 297,650.38

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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.