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Finding the Fourth Proportional to 305,726.73, 456,531.40 and 249,678.10

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Solution

The fourth proportional to 305,726.73, 456,531.40 and 249,678.10 is: 372,835.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,726.73 : 456,531.40 = 249,678.10 : x
  2. Step 2: Convert to fraction form
    305,726.73/456,531.40 = 249,678.10/x
  3. Step 3: Cross multiply
    305,726.73x = 456,531.40 × 249,678.10
  4. Step 4: Simplify right side
    305,726.73x = 113,985,892,542.34
  5. Step 5: Solve for x
    x = 113,985,892,542.34/305,726.73
  6. Step 6: Final answer
    x = 372,835.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.