Home / 397,717.40-596,172.90-197,730.20

Finding the Fourth Proportional to 397,717.40, 596,172.90 and 197,730.20

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Solution

The fourth proportional to 397,717.40, 596,172.90 and 197,730.20 is: 296,394.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,717.40 : 596,172.90 = 197,730.20 : x
  2. Step 2: Convert to fraction form
    397,717.40/596,172.90 = 197,730.20/x
  3. Step 3: Cross multiply
    397,717.40x = 596,172.90 × 197,730.20
  4. Step 4: Simplify right side
    397,717.40x = 117,881,386,751.58
  5. Step 5: Solve for x
    x = 117,881,386,751.58/397,717.40
  6. Step 6: Final answer
    x = 296,394.84

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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.