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Finding the Fourth Proportional to 216,230.32, 324,325.68 and 153,320.32

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Solution

The fourth proportional to 216,230.32, 324,325.68 and 153,320.32 is: 229,966.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,230.32 : 324,325.68 = 153,320.32 : x
  2. Step 2: Convert to fraction form
    216,230.32/324,325.68 = 153,320.32/x
  3. Step 3: Cross multiply
    216,230.32x = 324,325.68 × 153,320.32
  4. Step 4: Simplify right side
    216,230.32x = 49,725,717,041.82
  5. Step 5: Solve for x
    x = 49,725,717,041.82/216,230.32
  6. Step 6: Final answer
    x = 229,966.44

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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.