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Finding the Fourth Proportional to 391,602.02, 540,400.28 and 230,466.56

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Solution

The fourth proportional to 391,602.02, 540,400.28 and 230,466.56 is: 318,037.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,602.02 : 540,400.28 = 230,466.56 : x
  2. Step 2: Convert to fraction form
    391,602.02/540,400.28 = 230,466.56/x
  3. Step 3: Cross multiply
    391,602.02x = 540,400.28 × 230,466.56
  4. Step 4: Simplify right side
    391,602.02x = 124,544,193,554.64
  5. Step 5: Solve for x
    x = 124,544,193,554.64/391,602.02
  6. Step 6: Final answer
    x = 318,037.67

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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.