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Finding the Fourth Proportional to 370,265.76, 555,024.72 and 145,783.74

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Solution

The fourth proportional to 370,265.76, 555,024.72 and 145,783.74 is: 218,528.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,265.76 : 555,024.72 = 145,783.74 : x
  2. Step 2: Convert to fraction form
    370,265.76/555,024.72 = 145,783.74/x
  3. Step 3: Cross multiply
    370,265.76x = 555,024.72 × 145,783.74
  4. Step 4: Simplify right side
    370,265.76x = 80,913,579,474.05
  5. Step 5: Solve for x
    x = 80,913,579,474.05/370,265.76
  6. Step 6: Final answer
    x = 218,528.39

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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.