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Finding the Fourth Proportional to 326,145.41, 489,264.25 and 101,528.51

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Solution

The fourth proportional to 326,145.41, 489,264.25 and 101,528.51 is: 152,307.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,145.41 : 489,264.25 = 101,528.51 : x
  2. Step 2: Convert to fraction form
    326,145.41/489,264.25 = 101,528.51/x
  3. Step 3: Cross multiply
    326,145.41x = 489,264.25 × 101,528.51
  4. Step 4: Simplify right side
    326,145.41x = 49,674,271,917.16
  5. Step 5: Solve for x
    x = 49,674,271,917.16/326,145.41
  6. Step 6: Final answer
    x = 152,307.13

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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.