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Finding the Fourth Proportional to 359,144.12, 495,677.40 and 216,048.80

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Solution

The fourth proportional to 359,144.12, 495,677.40 and 216,048.80 is: 298,182.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,144.12 : 495,677.40 = 216,048.80 : x
  2. Step 2: Convert to fraction form
    359,144.12/495,677.40 = 216,048.80/x
  3. Step 3: Cross multiply
    359,144.12x = 495,677.40 × 216,048.80
  4. Step 4: Simplify right side
    359,144.12x = 107,090,507,457.12
  5. Step 5: Solve for x
    x = 107,090,507,457.12/359,144.12
  6. Step 6: Final answer
    x = 298,182.54

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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.