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Finding the Fourth Proportional to 368,996.10, 553,494.15 and 303,386.10

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Solution

The fourth proportional to 368,996.10, 553,494.15 and 303,386.10 is: 455,079.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,996.10 : 553,494.15 = 303,386.10 : x
  2. Step 2: Convert to fraction form
    368,996.10/553,494.15 = 303,386.10/x
  3. Step 3: Cross multiply
    368,996.10x = 553,494.15 × 303,386.10
  4. Step 4: Simplify right side
    368,996.10x = 167,922,431,541.32
  5. Step 5: Solve for x
    x = 167,922,431,541.32/368,996.10
  6. Step 6: Final answer
    x = 455,079.15

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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.