Home / 316,765.28-437,014.32-180,806.78

Finding the Fourth Proportional to 316,765.28, 437,014.32 and 180,806.78

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Solution

The fourth proportional to 316,765.28, 437,014.32 and 180,806.78 is: 249,443.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,765.28 : 437,014.32 = 180,806.78 : x
  2. Step 2: Convert to fraction form
    316,765.28/437,014.32 = 180,806.78/x
  3. Step 3: Cross multiply
    316,765.28x = 437,014.32 × 180,806.78
  4. Step 4: Simplify right side
    316,765.28x = 79,015,152,013.09
  5. Step 5: Solve for x
    x = 79,015,152,013.09/316,765.28
  6. Step 6: Final answer
    x = 249,443.85

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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.