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Finding the Fourth Proportional to 472,979.98, 652,726.20 and 258,133.84

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Solution

The fourth proportional to 472,979.98, 652,726.20 and 258,133.84 is: 356,232.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,979.98 : 652,726.20 = 258,133.84 : x
  2. Step 2: Convert to fraction form
    472,979.98/652,726.20 = 258,133.84/x
  3. Step 3: Cross multiply
    472,979.98x = 652,726.20 × 258,133.84
  4. Step 4: Simplify right side
    472,979.98x = 168,490,720,474.61
  5. Step 5: Solve for x
    x = 168,490,720,474.61/472,979.98
  6. Step 6: Final answer
    x = 356,232.25

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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.