Home / 347,820.90-521,427.60-134,734.20

Finding the Fourth Proportional to 347,820.90, 521,427.60 and 134,734.20

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Solution

The fourth proportional to 347,820.90, 521,427.60 and 134,734.20 is: 201,983.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,820.90 : 521,427.60 = 134,734.20 : x
  2. Step 2: Convert to fraction form
    347,820.90/521,427.60 = 134,734.20/x
  3. Step 3: Cross multiply
    347,820.90x = 521,427.60 × 134,734.20
  4. Step 4: Simplify right side
    347,820.90x = 70,254,130,543.92
  5. Step 5: Solve for x
    x = 70,254,130,543.92/347,820.90
  6. Step 6: Final answer
    x = 201,983.64

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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.