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Finding the Fourth Proportional to 370,176.60, 555,005.70 and 145,450.20

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Solution

The fourth proportional to 370,176.60, 555,005.70 and 145,450.20 is: 218,073.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,176.60 : 555,005.70 = 145,450.20 : x
  2. Step 2: Convert to fraction form
    370,176.60/555,005.70 = 145,450.20/x
  3. Step 3: Cross multiply
    370,176.60x = 555,005.70 × 145,450.20
  4. Step 4: Simplify right side
    370,176.60x = 80,725,690,066.14
  5. Step 5: Solve for x
    x = 80,725,690,066.14/370,176.60
  6. Step 6: Final answer
    x = 218,073.45

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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.