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Finding the Fourth Proportional to 245,748, 368,680.50 and 79,536

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Solution

The fourth proportional to 245,748, 368,680.50 and 79,536 is: 119,322.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,748 : 368,680.50 = 79,536 : x
  2. Step 2: Convert to fraction form
    245,748/368,680.50 = 79,536/x
  3. Step 3: Cross multiply
    245,748x = 368,680.50 × 79,536
  4. Step 4: Simplify right side
    245,748x = 29,323,372,248
  5. Step 5: Solve for x
    x = 29,323,372,248/245,748
  6. Step 6: Final answer
    x = 119,322.93

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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.