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Finding the Fourth Proportional to 370,265.75, 555,400.45 and 89,783

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Solution

The fourth proportional to 370,265.75, 555,400.45 and 89,783 is: 134,674.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,265.75 : 555,400.45 = 89,783 : x
  2. Step 2: Convert to fraction form
    370,265.75/555,400.45 = 89,783/x
  3. Step 3: Cross multiply
    370,265.75x = 555,400.45 × 89,783
  4. Step 4: Simplify right side
    370,265.75x = 49,865,518,602.35
  5. Step 5: Solve for x
    x = 49,865,518,602.35/370,265.75
  6. Step 6: Final answer
    x = 134,674.94

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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.