Home / 456,278.05-684,188.65-140,693.95

Finding the Fourth Proportional to 456,278.05, 684,188.65 and 140,693.95

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Solution

The fourth proportional to 456,278.05, 684,188.65 and 140,693.95 is: 210,970.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,278.05 : 684,188.65 = 140,693.95 : x
  2. Step 2: Convert to fraction form
    456,278.05/684,188.65 = 140,693.95/x
  3. Step 3: Cross multiply
    456,278.05x = 684,188.65 × 140,693.95
  4. Step 4: Simplify right side
    456,278.05x = 96,261,203,713.67
  5. Step 5: Solve for x
    x = 96,261,203,713.67/456,278.05
  6. Step 6: Final answer
    x = 210,970.49

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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.