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Finding the Fourth Proportional to 245,693.69, 368,630.67 and 103,574.75

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Solution

The fourth proportional to 245,693.69, 368,630.67 and 103,574.75 is: 155,400.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,693.69 : 368,630.67 = 103,574.75 : x
  2. Step 2: Convert to fraction form
    245,693.69/368,630.67 = 103,574.75/x
  3. Step 3: Cross multiply
    245,693.69x = 368,630.67 × 103,574.75
  4. Step 4: Simplify right side
    245,693.69x = 38,180,829,487.58
  5. Step 5: Solve for x
    x = 38,180,829,487.58/245,693.69
  6. Step 6: Final answer
    x = 155,400.12

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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.