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Finding the Fourth Proportional to 376,838.07, 520,030.53 and 207,068.55

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Solution

The fourth proportional to 376,838.07, 520,030.53 and 207,068.55 is: 285,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,838.07 : 520,030.53 = 207,068.55 : x
  2. Step 2: Convert to fraction form
    376,838.07/520,030.53 = 207,068.55/x
  3. Step 3: Cross multiply
    376,838.07x = 520,030.53 × 207,068.55
  4. Step 4: Simplify right side
    376,838.07x = 107,681,967,802.83
  5. Step 5: Solve for x
    x = 107,681,967,802.83/376,838.07
  6. Step 6: Final answer
    x = 285,751.30

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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.