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Finding the Fourth Proportional to 476,153.15, 657,110.29 and 261,300.90

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Solution

The fourth proportional to 476,153.15, 657,110.29 and 261,300.90 is: 360,605.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,153.15 : 657,110.29 = 261,300.90 : x
  2. Step 2: Convert to fraction form
    476,153.15/657,110.29 = 261,300.90/x
  3. Step 3: Cross multiply
    476,153.15x = 657,110.29 × 261,300.90
  4. Step 4: Simplify right side
    476,153.15x = 171,703,510,671.02
  5. Step 5: Solve for x
    x = 171,703,510,671.02/476,153.15
  6. Step 6: Final answer
    x = 360,605.64

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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.