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Finding the Fourth Proportional to 287,303.16, 431,576.82 and 234,841.08

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Solution

The fourth proportional to 287,303.16, 431,576.82 and 234,841.08 is: 352,770.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,303.16 : 431,576.82 = 234,841.08 : x
  2. Step 2: Convert to fraction form
    287,303.16/431,576.82 = 234,841.08/x
  3. Step 3: Cross multiply
    287,303.16x = 431,576.82 × 234,841.08
  4. Step 4: Simplify right side
    287,303.16x = 101,351,966,511.77
  5. Step 5: Solve for x
    x = 101,351,966,511.77/287,303.16
  6. Step 6: Final answer
    x = 352,770.11

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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.