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Finding the Fourth Proportional to 376,859.52, 520,060.16 and 207,090

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Solution

The fourth proportional to 376,859.52, 520,060.16 and 207,090 is: 285,780.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,859.52 : 520,060.16 = 207,090 : x
  2. Step 2: Convert to fraction form
    376,859.52/520,060.16 = 207,090/x
  3. Step 3: Cross multiply
    376,859.52x = 520,060.16 × 207,090
  4. Step 4: Simplify right side
    376,859.52x = 107,699,258,534.40
  5. Step 5: Solve for x
    x = 107,699,258,534.40/376,859.52
  6. Step 6: Final answer
    x = 285,780.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.