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Finding the Fourth Proportional to 612,208.19, 918,321.51 and 233,149.88

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Solution

The fourth proportional to 612,208.19, 918,321.51 and 233,149.88 is: 349,728.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,208.19 : 918,321.51 = 233,149.88 : x
  2. Step 2: Convert to fraction form
    612,208.19/918,321.51 = 233,149.88/x
  3. Step 3: Cross multiply
    612,208.19x = 918,321.51 × 233,149.88
  4. Step 4: Simplify right side
    612,208.19x = 214,106,549,857.92
  5. Step 5: Solve for x
    x = 214,106,549,857.92/612,208.19
  6. Step 6: Final answer
    x = 349,728.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.