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Finding the Fourth Proportional to 612,054.23, 918,008.31 and 162,807.98

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Solution

The fourth proportional to 612,054.23, 918,008.31 and 162,807.98 is: 244,192.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,054.23 : 918,008.31 = 162,807.98 : x
  2. Step 2: Convert to fraction form
    612,054.23/918,008.31 = 162,807.98/x
  3. Step 3: Cross multiply
    612,054.23x = 918,008.31 × 162,807.98
  4. Step 4: Simplify right side
    612,054.23x = 149,459,078,574.31
  5. Step 5: Solve for x
    x = 149,459,078,574.31/612,054.23
  6. Step 6: Final answer
    x = 244,192.54

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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.