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Finding the Fourth Proportional to 304,720.10, 456,905.12 and 162,390.14

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Solution

The fourth proportional to 304,720.10, 456,905.12 and 162,390.14 is: 243,491.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,720.10 : 456,905.12 = 162,390.14 : x
  2. Step 2: Convert to fraction form
    304,720.10/456,905.12 = 162,390.14/x
  3. Step 3: Cross multiply
    304,720.10x = 456,905.12 × 162,390.14
  4. Step 4: Simplify right side
    304,720.10x = 74,196,886,403.52
  5. Step 5: Solve for x
    x = 74,196,886,403.52/304,720.10
  6. Step 6: Final answer
    x = 243,491.93

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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.