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Finding the Fourth Proportional to 389,502.99, 584,330.23 and 149,599.34

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Solution

The fourth proportional to 389,502.99, 584,330.23 and 149,599.34 is: 224,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,502.99 : 584,330.23 = 149,599.34 : x
  2. Step 2: Convert to fraction form
    389,502.99/584,330.23 = 149,599.34/x
  3. Step 3: Cross multiply
    389,502.99x = 584,330.23 × 149,599.34
  4. Step 4: Simplify right side
    389,502.99x = 87,415,417,667.46
  5. Step 5: Solve for x
    x = 87,415,417,667.46/389,502.99
  6. Step 6: Final answer
    x = 224,428.11

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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.