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Finding the Fourth Proportional to 663,574.50, 995,365.40 and 164,938.50

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Solution

The fourth proportional to 663,574.50, 995,365.40 and 164,938.50 is: 247,408.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,574.50 : 995,365.40 = 164,938.50 : x
  2. Step 2: Convert to fraction form
    663,574.50/995,365.40 = 164,938.50/x
  3. Step 3: Cross multiply
    663,574.50x = 995,365.40 × 164,938.50
  4. Step 4: Simplify right side
    663,574.50x = 164,174,075,203.21
  5. Step 5: Solve for x
    x = 164,174,075,203.21/663,574.50
  6. Step 6: Final answer
    x = 247,408.66

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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.