Home / 451,269.12-676,678.28-147,623.64

Finding the Fourth Proportional to 451,269.12, 676,678.28 and 147,623.64

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Solution

The fourth proportional to 451,269.12, 676,678.28 and 147,623.64 is: 221,361.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,269.12 : 676,678.28 = 147,623.64 : x
  2. Step 2: Convert to fraction form
    451,269.12/676,678.28 = 147,623.64/x
  3. Step 3: Cross multiply
    451,269.12x = 676,678.28 × 147,623.64
  4. Step 4: Simplify right side
    451,269.12x = 99,893,710,802.54
  5. Step 5: Solve for x
    x = 99,893,710,802.54/451,269.12
  6. Step 6: Final answer
    x = 221,361.72

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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.