Home / 386,848.40-533,815.08-217,051.28

Finding the Fourth Proportional to 386,848.40, 533,815.08 and 217,051.28

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Solution

The fourth proportional to 386,848.40, 533,815.08 and 217,051.28 is: 299,510.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,848.40 : 533,815.08 = 217,051.28 : x
  2. Step 2: Convert to fraction form
    386,848.40/533,815.08 = 217,051.28/x
  3. Step 3: Cross multiply
    386,848.40x = 533,815.08 × 217,051.28
  4. Step 4: Simplify right side
    386,848.40x = 115,865,246,397.30
  5. Step 5: Solve for x
    x = 115,865,246,397.30/386,848.40
  6. Step 6: Final answer
    x = 299,510.73

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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.