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Finding the Fourth Proportional to 352,403.84, 486,320.80 and 191,260.32

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Solution

The fourth proportional to 352,403.84, 486,320.80 and 191,260.32 is: 263,941.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,403.84 : 486,320.80 = 191,260.32 : x
  2. Step 2: Convert to fraction form
    352,403.84/486,320.80 = 191,260.32/x
  3. Step 3: Cross multiply
    352,403.84x = 486,320.80 × 191,260.32
  4. Step 4: Simplify right side
    352,403.84x = 93,013,871,830.66
  5. Step 5: Solve for x
    x = 93,013,871,830.66/352,403.84
  6. Step 6: Final answer
    x = 263,941.14

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1.5x scale

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.