Home / 353,019.34-487,164.40-202,145.50

Finding the Fourth Proportional to 353,019.34, 487,164.40 and 202,145.50

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Solution

The fourth proportional to 353,019.34, 487,164.40 and 202,145.50 is: 278,959.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,019.34 : 487,164.40 = 202,145.50 : x
  2. Step 2: Convert to fraction form
    353,019.34/487,164.40 = 202,145.50/x
  3. Step 3: Cross multiply
    353,019.34x = 487,164.40 × 202,145.50
  4. Step 4: Simplify right side
    353,019.34x = 98,478,091,220.20
  5. Step 5: Solve for x
    x = 98,478,091,220.20/353,019.34
  6. Step 6: Final answer
    x = 278,959.48

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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.