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Finding the Fourth Proportional to 438,436.92, 604,875.67 and 266,289.95

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Solution

The fourth proportional to 438,436.92, 604,875.67 and 266,289.95 is: 367,378.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,436.92 : 604,875.67 = 266,289.95 : x
  2. Step 2: Convert to fraction form
    438,436.92/604,875.67 = 266,289.95/x
  3. Step 3: Cross multiply
    438,436.92x = 604,875.67 × 266,289.95
  4. Step 4: Simplify right side
    438,436.92x = 161,072,307,564.69
  5. Step 5: Solve for x
    x = 161,072,307,564.69/438,436.92
  6. Step 6: Final answer
    x = 367,378.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.