Home / 478,015.14-717,145.74-141,042.18

Finding the Fourth Proportional to 478,015.14, 717,145.74 and 141,042.18

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Solution

The fourth proportional to 478,015.14, 717,145.74 and 141,042.18 is: 211,599.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,015.14 : 717,145.74 = 141,042.18 : x
  2. Step 2: Convert to fraction form
    478,015.14/717,145.74 = 141,042.18/x
  3. Step 3: Cross multiply
    478,015.14x = 717,145.74 × 141,042.18
  4. Step 4: Simplify right side
    478,015.14x = 101,147,798,547.31
  5. Step 5: Solve for x
    x = 101,147,798,547.31/478,015.14
  6. Step 6: Final answer
    x = 211,599.57

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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.