Home / 287,681.36-396,837.70-180,064.55

Finding the Fourth Proportional to 287,681.36, 396,837.70 and 180,064.55

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Solution

The fourth proportional to 287,681.36, 396,837.70 and 180,064.55 is: 248,387.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,681.36 : 396,837.70 = 180,064.55 : x
  2. Step 2: Convert to fraction form
    287,681.36/396,837.70 = 180,064.55/x
  3. Step 3: Cross multiply
    287,681.36x = 396,837.70 × 180,064.55
  4. Step 4: Simplify right side
    287,681.36x = 71,456,402,415.47
  5. Step 5: Solve for x
    x = 71,456,402,415.47/287,681.36
  6. Step 6: Final answer
    x = 248,387.33

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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.