Home / 318,669.84-439,776.90-175,443.21

Finding the Fourth Proportional to 318,669.84, 439,776.90 and 175,443.21

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Solution

The fourth proportional to 318,669.84, 439,776.90 and 175,443.21 is: 242,118.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,669.84 : 439,776.90 = 175,443.21 : x
  2. Step 2: Convert to fraction form
    318,669.84/439,776.90 = 175,443.21/x
  3. Step 3: Cross multiply
    318,669.84x = 439,776.90 × 175,443.21
  4. Step 4: Simplify right side
    318,669.84x = 77,155,871,019.85
  5. Step 5: Solve for x
    x = 77,155,871,019.85/318,669.84
  6. Step 6: Final answer
    x = 242,118.52

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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.