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Finding the Fourth Proportional to 626,868.32, 940,296 and 153,556.16

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Solution

The fourth proportional to 626,868.32, 940,296 and 153,556.16 is: 230,332.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,868.32 : 940,296 = 153,556.16 : x
  2. Step 2: Convert to fraction form
    626,868.32/940,296 = 153,556.16/x
  3. Step 3: Cross multiply
    626,868.32x = 940,296 × 153,556.16
  4. Step 4: Simplify right side
    626,868.32x = 144,388,243,023.36
  5. Step 5: Solve for x
    x = 144,388,243,023.36/626,868.32
  6. Step 6: Final answer
    x = 230,332.65

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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.