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Finding the Fourth Proportional to 458,112, 632,263.68 and 279,367.68

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Solution

The fourth proportional to 458,112, 632,263.68 and 279,367.68 is: 385,569.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,112 : 632,263.68 = 279,367.68 : x
  2. Step 2: Convert to fraction form
    458,112/632,263.68 = 279,367.68/x
  3. Step 3: Cross multiply
    458,112x = 632,263.68 × 279,367.68
  4. Step 4: Simplify right side
    458,112x = 176,634,037,429.86
  5. Step 5: Solve for x
    x = 176,634,037,429.86/458,112
  6. Step 6: Final answer
    x = 385,569.55

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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.