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Finding the Fourth Proportional to 376,835.40, 520,026.95 and 207,065.88

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Solution

The fourth proportional to 376,835.40, 520,026.95 and 207,065.88 is: 285,747.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,835.40 : 520,026.95 = 207,065.88 : x
  2. Step 2: Convert to fraction form
    376,835.40/520,026.95 = 207,065.88/x
  3. Step 3: Cross multiply
    376,835.40x = 520,026.95 × 207,065.88
  4. Step 4: Simplify right side
    376,835.40x = 107,679,838,543.13
  5. Step 5: Solve for x
    x = 107,679,838,543.13/376,835.40
  6. Step 6: Final answer
    x = 285,747.67

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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.