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Finding the Fourth Proportional to 453,297.70, 679,946.55 and 137,713.60

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Solution

The fourth proportional to 453,297.70, 679,946.55 and 137,713.60 is: 206,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,297.70 : 679,946.55 = 137,713.60 : x
  2. Step 2: Convert to fraction form
    453,297.70/679,946.55 = 137,713.60/x
  3. Step 3: Cross multiply
    453,297.70x = 679,946.55 × 137,713.60
  4. Step 4: Simplify right side
    453,297.70x = 93,637,887,208.08
  5. Step 5: Solve for x
    x = 93,637,887,208.08/453,297.70
  6. Step 6: Final answer
    x = 206,570.40

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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.