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Finding the Fourth Proportional to 282,801, 390,267.91 and 153,739.74

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Solution

The fourth proportional to 282,801, 390,267.91 and 153,739.74 is: 212,162.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,801 : 390,267.91 = 153,739.74 : x
  2. Step 2: Convert to fraction form
    282,801/390,267.91 = 153,739.74/x
  3. Step 3: Cross multiply
    282,801x = 390,267.91 × 153,739.74
  4. Step 4: Simplify right side
    282,801x = 59,999,687,013.74
  5. Step 5: Solve for x
    x = 59,999,687,013.74/282,801
  6. Step 6: Final answer
    x = 212,162.22

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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.