Home / 258,966.84-357,408.30-145,811.64

Finding the Fourth Proportional to 258,966.84, 357,408.30 and 145,811.64

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Solution

The fourth proportional to 258,966.84, 357,408.30 and 145,811.64 is: 201,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,966.84 : 357,408.30 = 145,811.64 : x
  2. Step 2: Convert to fraction form
    258,966.84/357,408.30 = 145,811.64/x
  3. Step 3: Cross multiply
    258,966.84x = 357,408.30 × 145,811.64
  4. Step 4: Simplify right side
    258,966.84x = 52,114,290,372.61
  5. Step 5: Solve for x
    x = 52,114,290,372.61/258,966.84
  6. Step 6: Final answer
    x = 201,239.24

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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.