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Finding the Fourth Proportional to 236,438.80, 354,658.20 and 147,792.40

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Solution

The fourth proportional to 236,438.80, 354,658.20 and 147,792.40 is: 221,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,438.80 : 354,658.20 = 147,792.40 : x
  2. Step 2: Convert to fraction form
    236,438.80/354,658.20 = 147,792.40/x
  3. Step 3: Cross multiply
    236,438.80x = 354,658.20 × 147,792.40
  4. Step 4: Simplify right side
    236,438.80x = 52,415,786,557.68
  5. Step 5: Solve for x
    x = 52,415,786,557.68/236,438.80
  6. Step 6: Final answer
    x = 221,688.60

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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.