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Finding the Fourth Proportional to 628,472.67, 942,710.94 and 155,158.08

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Solution

The fourth proportional to 628,472.67, 942,710.94 and 155,158.08 is: 232,737.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,472.67 : 942,710.94 = 155,158.08 : x
  2. Step 2: Convert to fraction form
    628,472.67/942,710.94 = 155,158.08/x
  3. Step 3: Cross multiply
    628,472.67x = 942,710.94 × 155,158.08
  4. Step 4: Simplify right side
    628,472.67x = 146,269,219,445.40
  5. Step 5: Solve for x
    x = 146,269,219,445.40/628,472.67
  6. Step 6: Final answer
    x = 232,737.60

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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.