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Finding the Fourth Proportional to 307,313.84, 458,921.98 and 291,567.44

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Solution

The fourth proportional to 307,313.84, 458,921.98 and 291,567.44 is: 435,407.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,313.84 : 458,921.98 = 291,567.44 : x
  2. Step 2: Convert to fraction form
    307,313.84/458,921.98 = 291,567.44/x
  3. Step 3: Cross multiply
    307,313.84x = 458,921.98 × 291,567.44
  4. Step 4: Simplify right side
    307,313.84x = 133,806,706,868.33
  5. Step 5: Solve for x
    x = 133,806,706,868.33/307,313.84
  6. Step 6: Final answer
    x = 435,407.36

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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.