Home / 290,717.15-436,075.73-91,053.16

Finding the Fourth Proportional to 290,717.15, 436,075.73 and 91,053.16

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Solution

The fourth proportional to 290,717.15, 436,075.73 and 91,053.16 is: 136,579.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,717.15 : 436,075.73 = 91,053.16 : x
  2. Step 2: Convert to fraction form
    290,717.15/436,075.73 = 91,053.16/x
  3. Step 3: Cross multiply
    290,717.15x = 436,075.73 × 91,053.16
  4. Step 4: Simplify right side
    290,717.15x = 39,706,071,670.35
  5. Step 5: Solve for x
    x = 39,706,071,670.35/290,717.15
  6. Step 6: Final answer
    x = 136,579.74

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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.