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Finding the Fourth Proportional to 489,898.51, 734,851.40 and 134,932

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Solution

The fourth proportional to 489,898.51, 734,851.40 and 134,932 is: 202,399.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,898.51 : 734,851.40 = 134,932 : x
  2. Step 2: Convert to fraction form
    489,898.51/734,851.40 = 134,932/x
  3. Step 3: Cross multiply
    489,898.51x = 734,851.40 × 134,932
  4. Step 4: Simplify right side
    489,898.51x = 99,154,969,104.80
  5. Step 5: Solve for x
    x = 99,154,969,104.80/489,898.51
  6. Step 6: Final answer
    x = 202,399.00

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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.