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Finding the Fourth Proportional to 376,775.65, 519,663.93 and 260,682.28

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Solution

The fourth proportional to 376,775.65, 519,663.93 and 260,682.28 is: 359,543.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,775.65 : 519,663.93 = 260,682.28 : x
  2. Step 2: Convert to fraction form
    376,775.65/519,663.93 = 260,682.28/x
  3. Step 3: Cross multiply
    376,775.65x = 519,663.93 × 260,682.28
  4. Step 4: Simplify right side
    376,775.65x = 135,467,178,106.16
  5. Step 5: Solve for x
    x = 135,467,178,106.16/376,775.65
  6. Step 6: Final answer
    x = 359,543.35

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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.