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Finding the Fourth Proportional to 354,501.88, 489,184.86 and 193,347.52

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Solution

The fourth proportional to 354,501.88, 489,184.86 and 193,347.52 is: 266,804.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,501.88 : 489,184.86 = 193,347.52 : x
  2. Step 2: Convert to fraction form
    354,501.88/489,184.86 = 193,347.52/x
  3. Step 3: Cross multiply
    354,501.88x = 489,184.86 × 193,347.52
  4. Step 4: Simplify right side
    354,501.88x = 94,582,679,502.55
  5. Step 5: Solve for x
    x = 94,582,679,502.55/354,501.88
  6. Step 6: Final answer
    x = 266,804.45

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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.