Home / 485,325.21-727,989.74-148,364.61

Finding the Fourth Proportional to 485,325.21, 727,989.74 and 148,364.61

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Solution

The fourth proportional to 485,325.21, 727,989.74 and 148,364.61 is: 222,547.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,325.21 : 727,989.74 = 148,364.61 : x
  2. Step 2: Convert to fraction form
    485,325.21/727,989.74 = 148,364.61/x
  3. Step 3: Cross multiply
    485,325.21x = 727,989.74 × 148,364.61
  4. Step 4: Simplify right side
    485,325.21x = 108,007,913,117.28
  5. Step 5: Solve for x
    x = 108,007,913,117.28/485,325.21
  6. Step 6: Final answer
    x = 222,547.50

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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.