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Finding the Fourth Proportional to 279,633.60, 385,894.13 and 152,309.23

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Solution

The fourth proportional to 279,633.60, 385,894.13 and 152,309.23 is: 210,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,633.60 : 385,894.13 = 152,309.23 : x
  2. Step 2: Convert to fraction form
    279,633.60/385,894.13 = 152,309.23/x
  3. Step 3: Cross multiply
    279,633.60x = 385,894.13 × 152,309.23
  4. Step 4: Simplify right side
    279,633.60x = 58,775,236,075.54
  5. Step 5: Solve for x
    x = 58,775,236,075.54/279,633.60
  6. Step 6: Final answer
    x = 210,186.60

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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.