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Finding the Fourth Proportional to 210,468.53, 315,841.19 and 77,349.93

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Solution

The fourth proportional to 210,468.53, 315,841.19 and 77,349.93 is: 116,075.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,468.53 : 315,841.19 = 77,349.93 : x
  2. Step 2: Convert to fraction form
    210,468.53/315,841.19 = 77,349.93/x
  3. Step 3: Cross multiply
    210,468.53x = 315,841.19 × 77,349.93
  4. Step 4: Simplify right side
    210,468.53x = 24,430,293,937.62
  5. Step 5: Solve for x
    x = 24,430,293,937.62/210,468.53
  6. Step 6: Final answer
    x = 116,075.76

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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.