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Finding the Fourth Proportional to 557,297.70, 835,683.03 and 215,901.06

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Solution

The fourth proportional to 557,297.70, 835,683.03 and 215,901.06 is: 323,749.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,297.70 : 835,683.03 = 215,901.06 : x
  2. Step 2: Convert to fraction form
    557,297.70/835,683.03 = 215,901.06/x
  3. Step 3: Cross multiply
    557,297.70x = 835,683.03 × 215,901.06
  4. Step 4: Simplify right side
    557,297.70x = 180,424,852,001.01
  5. Step 5: Solve for x
    x = 180,424,852,001.01/557,297.70
  6. Step 6: Final answer
    x = 323,749.50

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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.