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Finding the Fourth Proportional to 515,007.60, 772,292.70 and 248,849.70

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Solution

The fourth proportional to 515,007.60, 772,292.70 and 248,849.70 is: 373,168.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,007.60 : 772,292.70 = 248,849.70 : x
  2. Step 2: Convert to fraction form
    515,007.60/772,292.70 = 248,849.70/x
  3. Step 3: Cross multiply
    515,007.60x = 772,292.70 × 248,849.70
  4. Step 4: Simplify right side
    515,007.60x = 192,184,806,707.19
  5. Step 5: Solve for x
    x = 192,184,806,707.19/515,007.60
  6. Step 6: Final answer
    x = 373,168.87

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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.