Home / 310,856.64-428,981.40-174,890.67

Finding the Fourth Proportional to 310,856.64, 428,981.40 and 174,890.67

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Solution

The fourth proportional to 310,856.64, 428,981.40 and 174,890.67 is: 241,348.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,856.64 : 428,981.40 = 174,890.67 : x
  2. Step 2: Convert to fraction form
    310,856.64/428,981.40 = 174,890.67/x
  3. Step 3: Cross multiply
    310,856.64x = 428,981.40 × 174,890.67
  4. Step 4: Simplify right side
    310,856.64x = 75,024,844,463.54
  5. Step 5: Solve for x
    x = 75,024,844,463.54/310,856.64
  6. Step 6: Final answer
    x = 241,348.70

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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.