Home / 290,985.14-436,584.32-122,547.86

Finding the Fourth Proportional to 290,985.14, 436,584.32 and 122,547.86

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Solution

The fourth proportional to 290,985.14, 436,584.32 and 122,547.86 is: 183,866.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,985.14 : 436,584.32 = 122,547.86 : x
  2. Step 2: Convert to fraction form
    290,985.14/436,584.32 = 122,547.86/x
  3. Step 3: Cross multiply
    290,985.14x = 436,584.32 × 122,547.86
  4. Step 4: Simplify right side
    290,985.14x = 53,502,473,512.82
  5. Step 5: Solve for x
    x = 53,502,473,512.82/290,985.14
  6. Step 6: Final answer
    x = 183,866.69

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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.