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Finding the Fourth Proportional to 385,969.49, 532,667.45 and 242,852.21

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Solution

The fourth proportional to 385,969.49, 532,667.45 and 242,852.21 is: 335,154.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,969.49 : 532,667.45 = 242,852.21 : x
  2. Step 2: Convert to fraction form
    385,969.49/532,667.45 = 242,852.21/x
  3. Step 3: Cross multiply
    385,969.49x = 532,667.45 × 242,852.21
  4. Step 4: Simplify right side
    385,969.49x = 129,359,467,427.56
  5. Step 5: Solve for x
    x = 129,359,467,427.56/385,969.49
  6. Step 6: Final answer
    x = 335,154.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.