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Finding the Fourth Proportional to 326,497.62, 489,935.51 and 136,941.12

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Solution

The fourth proportional to 326,497.62, 489,935.51 and 136,941.12 is: 205,490.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,497.62 : 489,935.51 = 136,941.12 : x
  2. Step 2: Convert to fraction form
    326,497.62/489,935.51 = 136,941.12/x
  3. Step 3: Cross multiply
    326,497.62x = 489,935.51 × 136,941.12
  4. Step 4: Simplify right side
    326,497.62x = 67,092,316,782.47
  5. Step 5: Solve for x
    x = 67,092,316,782.47/326,497.62
  6. Step 6: Final answer
    x = 205,490.98

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1.5x scale

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.