Home / 287,284.98-430,345.06-133,194.53

Finding the Fourth Proportional to 287,284.98, 430,345.06 and 133,194.53

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Solution

The fourth proportional to 287,284.98, 430,345.06 and 133,194.53 is: 199,521.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,284.98 : 430,345.06 = 133,194.53 : x
  2. Step 2: Convert to fraction form
    287,284.98/430,345.06 = 133,194.53/x
  3. Step 3: Cross multiply
    287,284.98x = 430,345.06 × 133,194.53
  4. Step 4: Simplify right side
    287,284.98x = 57,319,608,004.52
  5. Step 5: Solve for x
    x = 57,319,608,004.52/287,284.98
  6. Step 6: Final answer
    x = 199,521.77

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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.