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Finding the Fourth Proportional to 370,403.02, 555,223.15 and 145,672.35

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Solution

The fourth proportional to 370,403.02, 555,223.15 and 145,672.35 is: 218,358.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,403.02 : 555,223.15 = 145,672.35 : x
  2. Step 2: Convert to fraction form
    370,403.02/555,223.15 = 145,672.35/x
  3. Step 3: Cross multiply
    370,403.02x = 555,223.15 × 145,672.35
  4. Step 4: Simplify right side
    370,403.02x = 80,880,661,034.90
  5. Step 5: Solve for x
    x = 80,880,661,034.90/370,403.02
  6. Step 6: Final answer
    x = 218,358.54

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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.