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Finding the Fourth Proportional to 370,009.32, 510,558.26 and 216,989.71

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Solution

The fourth proportional to 370,009.32, 510,558.26 and 216,989.71 is: 299,413.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,009.32 : 510,558.26 = 216,989.71 : x
  2. Step 2: Convert to fraction form
    370,009.32/510,558.26 = 216,989.71/x
  3. Step 3: Cross multiply
    370,009.32x = 510,558.26 × 216,989.71
  4. Step 4: Simplify right side
    370,009.32x = 110,785,889,680.96
  5. Step 5: Solve for x
    x = 110,785,889,680.96/370,009.32
  6. Step 6: Final answer
    x = 299,413.78

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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.