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Finding the Fourth Proportional to 374,350.20, 561,525.30 and 355,918.20

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Solution

The fourth proportional to 374,350.20, 561,525.30 and 355,918.20 is: 533,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,350.20 : 561,525.30 = 355,918.20 : x
  2. Step 2: Convert to fraction form
    374,350.20/561,525.30 = 355,918.20/x
  3. Step 3: Cross multiply
    374,350.20x = 561,525.30 × 355,918.20
  4. Step 4: Simplify right side
    374,350.20x = 199,857,074,030.46
  5. Step 5: Solve for x
    x = 199,857,074,030.46/374,350.20
  6. Step 6: Final answer
    x = 533,877.30

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1.5x scale

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.