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Finding the Fourth Proportional to 310,329.36, 428,303.16 and 183,018.96

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Solution

The fourth proportional to 310,329.36, 428,303.16 and 183,018.96 is: 252,594.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,329.36 : 428,303.16 = 183,018.96 : x
  2. Step 2: Convert to fraction form
    310,329.36/428,303.16 = 183,018.96/x
  3. Step 3: Cross multiply
    310,329.36x = 428,303.16 × 183,018.96
  4. Step 4: Simplify right side
    310,329.36x = 78,387,598,907.91
  5. Step 5: Solve for x
    x = 78,387,598,907.91/310,329.36
  6. Step 6: Final answer
    x = 252,594.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.