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Finding the Fourth Proportional to 374,465.70, 561,698.55 and 355,220.10

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Solution

The fourth proportional to 374,465.70, 561,698.55 and 355,220.10 is: 532,830.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,465.70 : 561,698.55 = 355,220.10 : x
  2. Step 2: Convert to fraction form
    374,465.70/561,698.55 = 355,220.10/x
  3. Step 3: Cross multiply
    374,465.70x = 561,698.55 × 355,220.10
  4. Step 4: Simplify right side
    374,465.70x = 199,526,615,100.86
  5. Step 5: Solve for x
    x = 199,526,615,100.86/374,465.70
  6. Step 6: Final answer
    x = 532,830.15

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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.