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Finding the Fourth Proportional to 307,367.16, 458,646.79 and 243,463.16

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Solution

The fourth proportional to 307,367.16, 458,646.79 and 243,463.16 is: 363,290.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,367.16 : 458,646.79 = 243,463.16 : x
  2. Step 2: Convert to fraction form
    307,367.16/458,646.79 = 243,463.16/x
  3. Step 3: Cross multiply
    307,367.16x = 458,646.79 × 243,463.16
  4. Step 4: Simplify right side
    307,367.16x = 111,663,596,817.26
  5. Step 5: Solve for x
    x = 111,663,596,817.26/307,367.16
  6. Step 6: Final answer
    x = 363,290.59

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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.