Home / 286,312.47-395,111.91-158,988.05

Finding the Fourth Proportional to 286,312.47, 395,111.91 and 158,988.05

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Solution

The fourth proportional to 286,312.47, 395,111.91 and 158,988.05 is: 219,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,312.47 : 395,111.91 = 158,988.05 : x
  2. Step 2: Convert to fraction form
    286,312.47/395,111.91 = 158,988.05/x
  3. Step 3: Cross multiply
    286,312.47x = 395,111.91 × 158,988.05
  4. Step 4: Simplify right side
    286,312.47x = 62,818,072,102.68
  5. Step 5: Solve for x
    x = 62,818,072,102.68/286,312.47
  6. Step 6: Final answer
    x = 219,403.90

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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.