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Finding the Fourth Proportional to 614,344.78, 921,336.54 and 214,911.10

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Solution

The fourth proportional to 614,344.78, 921,336.54 and 214,911.10 is: 322,303.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,344.78 : 921,336.54 = 214,911.10 : x
  2. Step 2: Convert to fraction form
    614,344.78/921,336.54 = 214,911.10/x
  3. Step 3: Cross multiply
    614,344.78x = 921,336.54 × 214,911.10
  4. Step 4: Simplify right side
    614,344.78x = 198,005,449,281.59
  5. Step 5: Solve for x
    x = 198,005,449,281.59/614,344.78
  6. Step 6: Final answer
    x = 322,303.46

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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.