Home / 296,972.40-445,458.60-139,508.40

Finding the Fourth Proportional to 296,972.40, 445,458.60 and 139,508.40

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Solution

The fourth proportional to 296,972.40, 445,458.60 and 139,508.40 is: 209,262.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,972.40 : 445,458.60 = 139,508.40 : x
  2. Step 2: Convert to fraction form
    296,972.40/445,458.60 = 139,508.40/x
  3. Step 3: Cross multiply
    296,972.40x = 445,458.60 × 139,508.40
  4. Step 4: Simplify right side
    296,972.40x = 62,145,216,552.24
  5. Step 5: Solve for x
    x = 62,145,216,552.24/296,972.40
  6. Step 6: Final answer
    x = 209,262.60

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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.