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Finding the Fourth Proportional to 357,480.85, 493,395.18 and 212,367.24

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Solution

The fourth proportional to 357,480.85, 493,395.18 and 212,367.24 is: 293,109.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,480.85 : 493,395.18 = 212,367.24 : x
  2. Step 2: Convert to fraction form
    357,480.85/493,395.18 = 212,367.24/x
  3. Step 3: Cross multiply
    357,480.85x = 493,395.18 × 212,367.24
  4. Step 4: Simplify right side
    357,480.85x = 104,780,971,809.53
  5. Step 5: Solve for x
    x = 104,780,971,809.53/357,480.85
  6. Step 6: Final answer
    x = 293,109.33

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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.