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Finding the Fourth Proportional to 326,607.16, 489,784.78 and 126,901.26

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Solution

The fourth proportional to 326,607.16, 489,784.78 and 126,901.26 is: 190,302.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,607.16 : 489,784.78 = 126,901.26 : x
  2. Step 2: Convert to fraction form
    326,607.16/489,784.78 = 126,901.26/x
  3. Step 3: Cross multiply
    326,607.16x = 489,784.78 × 126,901.26
  4. Step 4: Simplify right side
    326,607.16x = 62,154,305,710.82
  5. Step 5: Solve for x
    x = 62,154,305,710.82/326,607.16
  6. Step 6: Final answer
    x = 190,302.95

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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.