Home / 314,778.84-472,088.88-90,140.73

Finding the Fourth Proportional to 314,778.84, 472,088.88 and 90,140.73

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Solution

The fourth proportional to 314,778.84, 472,088.88 and 90,140.73 is: 135,188.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,778.84 : 472,088.88 = 90,140.73 : x
  2. Step 2: Convert to fraction form
    314,778.84/472,088.88 = 90,140.73/x
  3. Step 3: Cross multiply
    314,778.84x = 472,088.88 × 90,140.73
  4. Step 4: Simplify right side
    314,778.84x = 42,554,436,268.08
  5. Step 5: Solve for x
    x = 42,554,436,268.08/314,778.84
  6. Step 6: Final answer
    x = 135,188.36

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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.