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Finding the Fourth Proportional to 260,979.84, 360,135.12 and 153,529.11

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Solution

The fourth proportional to 260,979.84, 360,135.12 and 153,529.11 is: 211,860.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,979.84 : 360,135.12 = 153,529.11 : x
  2. Step 2: Convert to fraction form
    260,979.84/360,135.12 = 153,529.11/x
  3. Step 3: Cross multiply
    260,979.84x = 360,135.12 × 153,529.11
  4. Step 4: Simplify right side
    260,979.84x = 55,291,224,453.34
  5. Step 5: Solve for x
    x = 55,291,224,453.34/260,979.84
  6. Step 6: Final answer
    x = 211,860.14

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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.