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Finding the Fourth Proportional to 307,366.16, 458,645.30 and 243,462.16

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Solution

The fourth proportional to 307,366.16, 458,645.30 and 243,462.16 is: 363,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,366.16 : 458,645.30 = 243,462.16 : x
  2. Step 2: Convert to fraction form
    307,366.16/458,645.30 = 243,462.16/x
  3. Step 3: Cross multiply
    307,366.16x = 458,645.30 × 243,462.16
  4. Step 4: Simplify right side
    307,366.16x = 111,662,775,411.85
  5. Step 5: Solve for x
    x = 111,662,775,411.85/307,366.16
  6. Step 6: Final answer
    x = 363,289.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.