Home / 210,582.84-290,603.64-115,089.51

Finding the Fourth Proportional to 210,582.84, 290,603.64 and 115,089.51

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Solution

The fourth proportional to 210,582.84, 290,603.64 and 115,089.51 is: 158,823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,582.84 : 290,603.64 = 115,089.51 : x
  2. Step 2: Convert to fraction form
    210,582.84/290,603.64 = 115,089.51/x
  3. Step 3: Cross multiply
    210,582.84x = 290,603.64 × 115,089.51
  4. Step 4: Simplify right side
    210,582.84x = 33,445,430,531.82
  5. Step 5: Solve for x
    x = 33,445,430,531.82/210,582.84
  6. Step 6: Final answer
    x = 158,823.15

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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.