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Finding the Fourth Proportional to 314,925.66, 472,246.29 and 90,234.63

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Solution

The fourth proportional to 314,925.66, 472,246.29 and 90,234.63 is: 135,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,925.66 : 472,246.29 = 90,234.63 : x
  2. Step 2: Convert to fraction form
    314,925.66/472,246.29 = 90,234.63/x
  3. Step 3: Cross multiply
    314,925.66x = 472,246.29 × 90,234.63
  4. Step 4: Simplify right side
    314,925.66x = 42,612,969,247.02
  5. Step 5: Solve for x
    x = 42,612,969,247.02/314,925.66
  6. Step 6: Final answer
    x = 135,311.20

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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.